A Tome of Battle

A common complaint about recent D&D is the gulf of power and utility that opens up between the warrior and the mage. While the wizard, cleric, and druid learn world-altering spells, the fighter swings his sword a few more times. Moreover, the metanalysis of weapon combat is largely solved, to the detriment of most of the weapon list. The tools in this document attempt to provide warriors with meaningful choices, options, and incentives to take actions other than "I attack with the weapon I chose at level 1."

This is primarily a "gamist" document, so while flavor is considered, it does not claim to fix combat to some imagined realistic or historical standard, or expand the weapon list for its own sake. This work attempts to adhere to 5E conventions: only as few modifiers and rolls as necessary to the mechanics. Each set of rules is presented ala carte, so a DM may wish to allow only some of these pages or powers; a checklist is provided separately for that purpose.

Weapons and Techniques. The vanilla weapon list has duplication and weapons with no mechanical value. The revised weapons table attempts to make any weapon an interesting choice for a warrior, balanced by weapon damage dice, properties, and available weapon techniques. These weapon techniques improve weaker weapons, take advantage of circumstances, or impose effects rather than increasing the damage ceiling.

Combat Actions. Actions beyond basic attacks and grapples are often locked behind feats, making builds inflexible and competing with ability score improvements. The Combat Actions section moots certain feats (such as Charger and Grappler) with situational actions, codifies DMG object damage guidelines for combat, and adds more ways for PCs to interact with their enemies and environment.

Stances. An innovation in the 3E Tome of Battle, stances provide martial characters with passive bonuses during combat. Combat Stances replace 5E's Fighting Style feature with dynamic stances inspired by Unearthed Arcana and the Book of Nine Swords. Instead of one choice near character creation, a PC makes strategic and tactical choices during level-ups and rounds of combat.

Maneuvers. The final section vastly expands maneuvers, with specializations - Cut-Throat, Mystic Knight, Savage, or Warlord - that represent approaches to battlefield superiority alongside a standard maneuver group. Like warlock invocations, some maneuvers have level requirements and are correspondingly more powerful. These rules also include optional features to gain limited access to these powers in exchange for their lesser class bonuses: a fighter, paladin or ranger can replace a stance, a rogue can sacrifice some sneak attack damage to add on-hit effects, and a barbarian can reduce his critical damage bonus. At higher levels, monks learn to perform maneuvers using martial arts and ki.

New and Revised Weapon Properties

New Weapons

Additional Combat Actions

This section provides rules for conditions and effects that are otherwise adjudicated by DM rulings, like restraining a spellcaster or executing a prisoner. Some of these actions replace weak feats or features, such as Charger, Grappler, or Berserker's Intimidating Presence, or modify actions that become less attractive to characters with multiple attacks.

Some actions in this section use hit dice as a resource (marked with an asterisk), and a DM may want to disallow them; these powerful actions may grant excessive resources to a party that has fewer encounters and short rests per day.

Hurl*

If you are grappling a target your size or smaller, you can exert yourself in an attempt to hit it with the ground. As a special melee attack, expend one or more hit dice, up to a number equal to your Strength modifier. You sling the creature 5 feet away from you and it must make a Dexterity saving throw against a DC equal to 8 + your Strength (Athletics) modifier, or it is thrown an additional 5 feet per hit die expended and lands prone.

The creature takes bludgeoning damage equal to your Strength modifier, plus 1d4 for each 5 feet it was thrown.

Knockout Blow

Once per turn, when you hit a surprised, incapacitated, or restrained creature with a bludgeoning attack, you can try to knock it out. Roll your damage as normal, but instead of taking damage the creature must succeed on a Constitution saving throw against a DC equal to 10 or half your damage roll, whichever is higher, or it is rendered unconscious for 1 minute. The target awakens if it takes damage or another creature uses an action to wake it. This ability has no effect on constructs and undead.

Overrun / Tumble

DMG pg. 272, revised
When you try to move through a hostile creature's space, you can try to force through by overrunning the creature. As an action or bonus action, make a Strength (Athletics) check contested by the creature's Strength (Athletics) check. You have advantage on your roll if you are larger than the creature, or disadvantage if you are smaller. If you win, you can move through (but not end your turn in) the hostile creature's space once on this turn.

Alternatively, you can attempt to duck, dodge, and weave past the hostile creature. As an action or bonus action, make a Dexterity (Acrobatics) check contested by the creature's Dexterity (Acrobatics) check. If you win, you can move through (but not end your turn in) the hostile creature's space once this turn. If the target wins, it can use its reaction to attempt to shove you or knock you prone.

Seize

While grappling a target that is your size or smaller, you can attempt to pin it with an additional free hand. As a special melee attack, make another grapple check. If you win, both you and the target are restrained until the grapple ends, and you can choose one of the following additional effects:

• You maneuver to the target's side or back. While restrained, the creature cannot attack you.
• You pin the target's hands and arms. While restrained, the creature cannot cast a spell with a somatic or material component, draw or attack with a non-light weapon, or take the Use an Object action.
• You cover the target's mouth and muffle its speech. While restrained, the creature cannot be heard clearly beyond 15 feet, or at all beyond 30 feet. If the creature attempts to cast a spell with a verbal component, it must succeed on a Dexterity saving throw against a DC of 8 + your Strength modifier or the spell fails but the spell slot is not lost. A creature smaller than you has disadvantage on this saving throw.

A creature can be subject to only one of these effects from each creature grappling it.

Sprint*

Pushing yourself to go slightly faster, you overexert yourself while moving into or out of danger. When you use your action or bonus action to Dash, you can expend and roll a hit die to move farther, gaining an amount of speed equal to 5 x half the die roll (rounded up) until the end of your turn. In addition, you can add your hit die to Strength (Athletics) checks until the end of this turn.

You cannot use this ability if your speed or movement has been reduced by an effect or condition.

Sunder

DMG pg. 246, extended
As an action, or in place of two weapon attacks, you attempt to break a weapon, shield, armor, or object the target is wearing or holding. The attack roll is made against the object’s AC, plus the Dexterity modifier and any circumstantial or magical bonuses to AC of the creature holding or wearing it. The object is considered to have half-cover (+2 bonus to AC) if it is not being held, and you have disadvantage on the attack roll if the object is more than one size smaller than the target.

On a hit, you deal damage to the object. If the object is reduced to 0 hit points, it is broken and can't be used in a normal fashion until it is repaired. Sundered armor provides no AC benefit. An item can be repaired via magic or by spending 1 hour using an appropriate set of tools, possibly requiring part of the item’s value in raw materials.

The hit points and AC of an object are subject to your DM's discretion, with some guidelines provided here and in the DMG. Most creatures wield weapons and shields that are small, resilient objects with 11 (3d6) hit points, while most medium-sized armor has 4 (1d6) hit points for each point of AC above 10. Most leather or wood objects have 15 AC and iron or steel objects have 19 AC. Most adventuring equipment has resistance to nonmagical damage and immunity to psychic and poison damage. Magical weapons or objects may be immune to sundering damage.

Tackle

You charge an opponent, attempting to subdue it using your momentum and weight. When you use your action to Dash and you move at least 10 feet in a straight line towards a creature, you can attempt to grapple or shove it as a bonus action. If you win the opposed check, the target is knocked prone and either grappled or pushed 5 feet (your choice). Otherwise, the target is unaffected.

In either case, you are knocked prone and your speed becomes 0 until the end of your turn.

Terrorize

You can use your action to frighten someone with your presence. Choose one creature within 15 feet of you that can see or hear you. It must succeed on a Wisdom saving throw (DC equal to 8 + your proficiency bonus + your Charisma or Strength modifier) or be frightened of you until the end of your next turn. On subsequent turns, you can use your action to extend the duration of this effect on the frightened creature until the end of your next turn. This effect ends if the creature ends its turn out of line of sight or more than 60 feet away from you. If the creature succeeds on its saving throw or the frightened condition ends, you can’t use this feature on that creature again for 24 hours.

A 10th level barbarian who follows the Path of the Berserker can initiate or extend this ability as a bonus action.

Weapon Techniques

When a class or feature grants you general proficiency with martial weapons, or you choose the Pact of the Blade, Path of the Kensei, or the Swashbuckler Archetype, you can choose to learn one technique that takes advantage of the properties of a weapon or family of weapons, as given on the table below. You learn one additional weapon technique of your choice each time you gain an Ability Score Improvement, or for each you have previously received.

At your DM's discretion, you can learn a new technique by spending a number of downtime days equal to 10 minus your Intelligence modifier training with an appropriate expert.

When a technique requires a saving throw, the DC is 8 + your weapon attack bonus. A technique can only be used while wielding a weapon in its list, and you must use the technique with a weapon in its list, unless otherwise noted.

When a technique deals damage to a creature without an attack roll, you can add any appropriate bonus from your weapon or class features to the damage roll, such as a barbarian's rage or a flametongue's fire damage, but cannot use a feature or power that triggers on a hit, such as sneak attack or smite. When a technique is used as a special melee attack, it must replace the attack granted by the Attack action. If you have multiple attacks as part of the Attack action, the technique replaces one of them.

Weapon Techniques

Flexible Flurry

Any versatile

The first time you make a one-handed attack with a versatile weapon on your turn, you gain a +1 bonus to your AC until the start of your next turn, unless you are wielding another weapon or wearing a shield.

Grazing Clout

Cestus, Club, Greatclub, Light Hammer, Mace, Sling

When an attack roll with this weapon misses the target's AC by 4 or less, the bludgeon still connects, if not so powerfully. The target takes bludgeoning damage equal to the weapon's damage die.

Iaijutsu

Longsword, Rapier, Saber, Scimitar, Shortsword

You draw this weapon from a scabbard or similar device as part of your attack with it, without using an object interaction.

If you have multiple attacks as part of your Attack action, you can make those multiple attacks when you use a readied action, instead of making a single attack.

Lunge

Halberd, Lance, Pike, Quarterstaff, Rapier, Spear, Trident

You can use a bonus action to extend in a lunging strike. You gain 5 feet of reach for your next attack on this turn.

Paired Weapon

Dagger, Light Hammer, Sickle, Swordbreaker

While you wield both this weapon and a non-light weapon, you gain a +1 bonus to your AC. Once per turn, you can choose to add 1d4 to the damage roll of your other weapon. When you do so, you lose the bonus to AC until the beginning of your next turn, unless you have the Dual Wielder feat.

Piercing Strike

Greatsword, Longsword, Morningstar, War Pick

As a special melee attack, you can attempt to penetrate and damage an opponent's heavy or natural armor. The target must make a Dexterity saving throw. On a failure, it takes piercing damage equal to your Strength modifier and its AC is reduced by 1 (maximum 2) until its armor is repaired using an action or, for natural armor, the creature receives regains hit points. This ability is ineffective against magical armor and constructs.

Pinning Shot

Any Bow, Dagger, Dart, Hand axe, Javelin, Heavy/Light Xbow

As an action, you can attempt to pin a Large or smaller creature that is within normal range of your weapon, sticking it to the ground or other terrain. A creature is unaffected if it is currently flying, swimming, or is immune to being knocked prone. Otherwise, the target must succeed on a Strength or Dexterity saving throw (its choice) or its speed is reduced to 0 until the end of its next turn. As an action on its turn, the creature can pull free and regain its normal speed.

Shattering Clobber

Any improvised, Club, Greatclub, Quarterstaff

When you are using an improvised weapon that deals bludgeoning damage or a nonmagical weapon listed above, you can use a weapon attack to strike with such force that the weapon breaks. The target must succeed on a Dexterity saving throw or take bludgeoning damage equal to a critical hit with your weapon, which is rendered broken and useless.

Shield Bash

None (shield)

As a special melee attack, you drive an opponent off-balance by smashing through its guard with your shield. The target must succeed on a Strength saving throw or it takes bludgeoning damage equal to your Strength modifier and your next attack roll against it this turn has advantage.

Split Shot

Any Bow, Heavy Crossbow, Sling

Once per turn in place of a ranged attack, you nock two pieces of ammunition and fire them at two creatures within 5 feet of each other. Make a ranged attack against each target; if either attack misses, both do. If both attacks hit, deal your weapon damage to each creature.

Suppressing Fire

Any Bow, Hand or Light Crossbow, Sling

You fire rapidly but inaccurately at an opponent, diverting its attention to you. As an action, expend three pieces of ammunition to force a creature within 30 feet to make a Wisdom saving throw. On a failure, it has disadvantage on attack rolls that don’t target you until the end of its next turn, unless you are more than 30 feet away from it.

Thrash

Flail, Any Whip
You swing your weapon wildly, denying an area to your enemies. In place of a weapon attack, choose a 5-foot square within your weapon's range. Until the start of your next turn, or if you move, attack with your weapon, choose to stop thrashing, or have any condition imposed on you, any creature that starts in or enters this space for the first time on a turn must make a Dexterity saving throw. On a failure, it takes damage as if you hit it with this weapon.

Whirling Rebuff

Greataxe, Halberd, Quarterstaff, Spear, Trident, Any Whip

As a special melee attack, you brandish your weapon to drive opponents away, up to a number of targets equal to your proficiency bonus. Each target must be within 5 feet from you and one other target. A targeted creature must succeed on a Strength saving throw or be pushed 5 feet in a direction of your choice.

Combat Stances

Stances were originally presented in the Book of Nine Swords for Third Edition, granting certain classes powers that continually boost a warrior's abilities. Fifth Edition uses some of this concept in Fighting Styles, available to most martial classes, and this document replaces those features with the following:

Savagery (Raging Demon)

After you roll damage, you can choose to reroll your weapon's damage dice and take either result. You can do this a number of times each round up to half your proficiency bonus.

Skirmishing (Zephyr Dance)

Your movement increases by 5 feet. The first 5 feet you move each turn does not provoke opportunity attacks.

Specialized Technique

You gain the Superior Technique feature (pg.12) instead of a stance. You can choose this feature only once.

Thrown-Weapon Fighting (Rabid Wolf)

Fighter or Ranger Only
When you hit with a ranged attack using a thrown weapon, add 1d4 to the weapon damage roll.

Unarmed Fighting (Tiger Claw)

You can roll a d6 in place of the normal damage of your unarmed strikes, or improvised or natural weapons. If you strike with two hands, the d6 becomes a d8.

At the start of your turn, you can choose to deal bludgeoning damage equal to your Strength modifier to one creature you are grappling.

Vanguard (White Raven)

Fighter or Paladin Only
When you hit a creature with a melee attack, the next attack roll against that creature made by someone other than you has advantage. You must remain within 5 feet of the creature to grant this benefit.

Advanced Stances

To learn or use one of these stances, you must meet the prerequisites listed. An advanced stance improves a basic stance, granting the benefits of both.

Maneuvers Expanded

These rules are intended to supplement the ones provided in the PHB for Battlemasters. The Battlemaster Archetype replaces the PHB Combat Superiority feature with the below feature. Specialized Technique (pg. 11) can be taken in place of a Fighting Style or Combat Stance, granting Superior Technique to a non-Battlemaster martial.

Dazing Blow^✝

When you hit a creature with an unarmed strike, you can expend a superiority die to add it to your damage roll and force the target to make a Constitution saving throw. On a failure, it can either use an action or move on its next turn, but not both.

Disarming Attack^✝

PHB pg. 74

Feinting Attack*^✝

When you hit a creature with a melee attack, you can expend a superiority die to add it to your damage roll and bait it into an opening. If the target attempts to attack you before the start of your next turn, you can use your reaction to make a melee attack against it prior to its attack.

Goading Attack^✝

PHB pg. 74

Lunging Attack*

Before you make a melee attack on your turn, you can expend one superiority die to increase your reach by 5 feet until the end of your turn. If you hit with this attack, add your superiority die to the attack’s damage roll.

Parry*

When you are hit by an attack, you can use your reaction and expend a superiority die to add it to your AC against this attack, potentially causing the attack to miss.

At 10th level, the AC bonus lasts until the end of your turn.

Perfect Rush

Prerequisite: Combat Superiority, 15th level
You prepare a flawless combination of strikes. As an action, expend a superiority die and begin concentrating (as if on a spell). For one minute or until your concentration ends, add your superiority die to your weapon damage rolls.

Precision Attack

PHB pg. 74

Punishing Strike^✝

Before you roll damage for a weapon attack, you can expend a superiority die to add it to your damage roll and maximize one damage die of your choice, treating the die as if you rolled its maximum value. On a critical hit, you maximize two dice of your choice.

Rain of Feathered Death

Prerequisite: 7th level
As an action, expend a superiority die and make one attack with a ranged weapon against each creature of your choice within a 10 foot radius of a point you choose within 60 feet of you. If you hit, your superiority die replaces your usual weapon die.

At 15th level, the radius expands to 20 feet.

Pushing Attack^✝

PHB pg. 74

Reactive Strike (Brace*)

As a reaction to a creature moving into the reach of your weapon, you can expend a superiority die and make a melee attack against it. On a hit, you deal additional damage equal to your die result and the creature loses 10 feet of movement (to a minimum of zero).

At 10th level, the movement loss increases to 20 feet.

Slayer's Rampage

Prerequisite: 7th level
Armies fall before your blade. As an action, you can expend a superiority die and gain the benefit of a Disengage action. Choose any number of creatures, up to the die result plus your proficiency bonus, provided that you move within 5 feet of each targeted creature on this turn. Each target must make a Constitution saving throw. On a failure, it is reduced to 0 hit points, unless it has a Challenge Rating greater than half your proficiency bonus (rounded down). Such a creature, or one that succeeds on its saving throw, is unaffected.

Strikes of Steel Wind

Prerequisite: 7th level
As an action, you vanish to strike like the wind. Choose creatures you can see within 30 feet of you, up to a number equal to your proficiency bonus, and expend a superiority die. Make one attack against each target, using your superiority die in place of your usual weapon die. You can then teleport to an unoccupied space within 5 feet of one of the targets.

At 15th level, your attacks deal an additional superiority die of damage.

Sweeping Attack*^✝

When you hit a creature with a melee attack, you can expend a superiority die to damage other creatures with the same attack. Choose any number of other creatures, up to your proficiency bonus, within your weapon's range. Each target takes damage equal the number you roll on your superiority die in the same type dealt by the original attack.

At 15th level, you deal two superiority dice in damage to each target.

Tactical Assessment

TCE pg. 42

Tripping Attack^✝

PHB pg. 74

Wind Slash

Prerequisite: 10th level
You strike in a blur. As an action, expend a superiority die and teleport to an unoccupied space you can see up to 30 feet away. Each creature in a straight line between your initial and final position takes your superiority die plus ability modifier in damage of your weapon's type.

At 15th level, the range of this ability becomes 60 feet.

Cut-Throat Maneuvers

Mystic Knight Maneuvers

Chilling Spellstrike

As an action, you can expend a superiority die and make a melee attack with your weapon, releasing painful frost in a 15 foot cone that emanates from you and includes the target. Your target takes damage as usual if you hit, and each creature in the affected area must succeed on a Constitution saving throw or take your superiority die in cold damage.

At 10th level, this ability releases a 30 foot cone.

Enfeebling Spellstrike^✝

Prerequisite: 7th level
When you hit a creature with a melee attack, you can use a bonus action to expend a superiority die and release negative energy. The attack deals extra necrotic damage equal to your superiority die, and the target must succeed on a Constitution saving throw or it deals only half damage with weapon attacks that use Strength until the end of its next turn.

Flickering Defense

You can use a bonus action to partially blink through the ethereal plane, expending a superiority die. Until the start of your next turn, when you are hit by an attack, roll your superiority die. On a 1 or 2, you take damage as usual. On any other result, you gain resistance to the triggering damage.

Ground Eruption

As an action, you can expend a superiority die and cause an earth shockwave in a straight line 30 feet long and 5 feet wide. The area affected becomes difficult terrain, and any creature in the area must succeed on a Strength saving throw or it is knocked prone and takes bludgeoning damage equal to one roll of your superiority die for each attack in your attack Action.

At 10th level, the shockwave is 10 feet wide.

Ignited Spellstrike^✝

Prerequisite: Combat Superiority, 10th level
When you hit a creature with a weapon attack, you can use a bonus action and expend a superiority die to set it aflame. The target takes fire damage equal to your superiority die and must make a Dexterity saving throw or be set aflame for one minute. At the start of each of its turns, the creature takes fire damage equal to your superiority die, ending when it uses an action to put out the flame or is otherwise doused.

Lesser Regeneration

When you expend a hit die to recover hit points, you can expend a superiority die to add it to the number of hit points you recover. If you do so during a short rest, you do not recover this superiority die at the end of that short rest.

Salamander Charge

Prerequisite: 10th level
When you Dash as an action, you can expend a superiority die to ignite the ground at your feet. You gain the benefit of a Disengage action, and a 5-foot wide wall of shimmering, spectral fire appears behind you, along the path you take. Any other creature within 5 feet of the wall at the start of its turn must make a Dexterity saving throw or take your superiority die in fire damage. If a creature enters the wall for the first time on a turn, it takes your superiority die in fire damage. The flames are extinguished at the start of your next turn.

At 15th level, your flame wall ignites a creature that fails its saving throw or enters the wall, and it takes your superiority die in fire damage at the start of its turn for one minute or until the flames are extinguished with an action.

Shocking Spellstrike^✝

When you hit a creature with a weapon attack, you can expend a superiority die to release a burst of static. You deal extra lightning damage equal to your superiority die and the target cannot take reactions until the start of your next turn.

Thunderclap Rush

Prerequisites: Combat Superiority, 15th level
When you take the Attack action, you can use a bonus action to charge a melee weapon with sonic energy and expend a superiority die. Each time you hit with the weapon during this action, all creatures in a 10 foot cube originating from you and including the creature must make a Constitution saving throw. On a failure, a creature takes thunder damage equal to your superiority die and is pushed 5 feet away from you. On a success, a creature takes no damage and is not pushed. Each thundering makes a loud noise audible up to 100 feet away.

Unstable Emanation

Choose a damage type - acid, cold, fire, lightning, or thunder - and expend a superiority die as a bonus action. Until the start of your next turn, your weapon attacks deal damage of the chosen type instead of their usual damage type, and you add your superiority die to your next damage roll on this turn.

At 10th level, the duration of this effect lasts for one minute or until you choose to end it.

Savage Maneuvers

Heroic Might

Prerequisite: 7th level
You can expend a superiority die to perform a momentary feat of strength beyond that of ordinary men. Add twice your die roll to your Strength for the purposes of determining how far or high you can jump, or how much weight you can lift, carry, push, or throw. This temporary Strength lasts until you finish the feat (such as leaping a crevasse), or one minute, whichever is shorter.

Alternatively, you can expend a superiority die to add the die result to one Strength check.

Juggernaut Charge

When you Dash as an action, you can expend a superiority die and move in a straight line through any number of creatures your size or smaller, as long as you have movement to do so. Each time you enter a creature's space, it can use its reaction to move 5 feet into an empty space. If it cannot or does not move, it takes your superiority die plus your Strength modifier in bludgeoning damage. At the end of this charge, you lose any remaining movement.

You cannot move into a creature's space if you do not have enough movement to exit its space.

Mighty Throw

Prerequisite: 10th level
When you successfully grapple a creature your size or smaller and have an additional free hand, or lift an object using your action, you can choose to expend a superiority die to hurl it, sending it airborne in a direction of your choice up to 5 feet times the die result. The target takes your Strength modifier in bludgeoning damage, plus one roll of your superiority die for each 10 feet it is thrown. It takes half damage if it succeeds on a Dexterity saving throw. If the thrown creature or object would hit another creature, that creature must also make a Dexterity saving throw, or it takes half damage. A thrown creature takes damage as if it were thrown the full distance, even if its flight is stopped by a wall, object, or creature.

At 15th level, add your Strength modifier to the die result when calculating how far you can throw an object or creature.

Menacing Attack^✝

PHB pg. 74

Packleader's Howl

Roaring with rage, you inspire your allies to greater ferocity. As a bonus action, choose a number of other creatures up to your proficiency bonus within 30 feet who can hear you, and expend a superiority die. If an affected creature hits with its next attack before the start of your next turn, add your superiority die to its damage roll.

Provoking Taunt

As a bonus action, you expend one superiority die and goad your enemies. Choose a number of creatures within 30 feet that can hear you, up to your proficiency bonus. Each target must succeed on a Wisdom saving throw or take a penalty equal to your superiority die on all attack rolls against targets other than you until the start of your next turn.

Savage Constitution

If, at the start of your turn, you are under an effect that causes the charmed, frightened, or poisoned condition, or that allows you to make a saving throw at the end of each of your turns to end it, you can immediately expend a superiority die to make a saving throw against the original save DC, ending the effect on a success. Add your superiority die to the roll.

Shake It Off

When you make a an ability check to defend against a grapple, or a saving throw against an effect that subjects you to the grappled, prone, restrained, or stunned condition, you can expend one superiority die and add the die roll to your check or saving throw.

Steelskin

When you are hit by an attack, you can use your reaction to expend a superiority die and reduce the damage by the die roll plus your Constitution modifier, to a minimum of zero.

Sundering Strike^✝

When you hit a creature with a melee attack, you can use a bonus action to expend a superiority die and damage natural or worn armor. Add the die to the damage roll, and the target must make a Constitution saving throw. On a failure, its AC is reduced by by 1 until the damage can be repaired, either with appropriate armorer's tools or, for natural armor, when the creature receives magical healing or finishes a short or long rest. A creature's AC cannot be reduced below 10 + its Dexterity modifier.

At 10th level, you no longer expend your bonus action when you use this maneuver.

Warlord Maneuvers