Martial Archetype: Many-Armed
As a warrior, you take the phrase "heavily armed" very literally. You have a total of four arms, and you have learned martial techniques to make the most of this edge in battle. Your arms could be a natural feature of your race, a prosthetic augmentation, or the byproduct of some odd transmutation magic. Whatever the case, you use every one of your limbs with deadly efficiency.
Four Arms
Starting at 3rd level, you have two additional arms for a total of four, and you know how to use them in combat. These arms are capable of everything that an ordinary arm can do.
If your race already gives you four arms, any limitations on your extra arms, such as not being able to hold certain types of weapons or use shields, are removed.
In addition, you gain the following benefits.
- You can use two-weapon fighting even when the weapon or weapons you attack with during your Action aren't light or one-handed. The weapon used for the bonus attack must still have the light property.
- If you use at least three free hands to grapple a creature, you have advantage on Strength checks to grapple them and keep them grappled.
- When you draw or sheathe a weapon, you can draw or sheathe an additional weapon as part of the same object interaction.
Armor Alterations
At 3rd level, you have learned how to alter your armor and clothing to accommodate your extra limbs. You gain proficiency in leatherworker's tools, smith's tools, and weaver's tools.
By spending a day of downtime, you can alter one set of armor or clothing to fit either your body shape or the body shape of someone else you know. This includes tailoring it to their size, up to one creature size larger or smaller than the original garment, and adding accommodations for extra appendages, such as arms, wings, and tails. Altering a magical set of armor or clothing in this way takes 3 days of downtime.
Multitasker
Starting at 7th level, you can interact with two objects, instead of one, when you take the Use an Object action on your turn.
The number of objects you can use increases to three when you reach 11th level in this class and to four when you reach 20th level in this class.
Additional Fighting Style
At 10th level, you learn a special fighting style which benefits from your extra set of arms. Choose one of the following options.
Shield Bracing. When you equip a shield, you can choose to wear it on both arms on that side. When you do, you gain an additional +2 bonus to AC.
Oversized Weapons. Your powerful arms allow you to wield oversized versions of melee weapons. You are proficient in oversized weapons. Converting a weapon to an oversized weapon takes a day of downtime and costs an amount of gp equal to the standard price of that kind of weapon. It gains the heavy property and loses the light and finesse properties, if it has them. An oversized weapon requires one more hand to hold than usual, and gains an additional 5 feet of reach.
Wielding an oversized weapon in three hands counts as using two hands for the purposes of features that require a two-handed weapon, such as the Great Weapon Fighting fighting style.
Power Grip. You use your extra hands to reinforce your grip on your weapon and put more force into all of your blows, or cleverly maneuver your weapon to vulnerable spots on your enemies. Your weapon attacks deal an additional +2 damage per free hand you have.
Triple Weapon Fighting. When you use your bonus action to make a weapon attack with two-weapon fighting, you can make an additional weapon attack as part of your bonus action. This extra attack must be made with a light, one-handed weapon that you have not used to attack this turn. You don't add your ability modifier to the damage of the bonus attack, unless that modifier is negative, even if you have a feature that allows you to do so with two-weapon fighting.
Improved Grapple
Starting at 15th level, your extra arms make it easy to pin an enemy down when you grab hold of them. When you grapple a creature using two or more of your arms, you can choose to restrain them instead.
More Arms
At 18th level, whether by a mutation, an invention, or magic of some sort, you find a way to temporarily give yourself even more arms for short periods of time.
As a bonus action, you can activate or summon these arms. In a transformation lasting 10 minutes, you gain an additional set of arms, for a total of six arms. These arms are capable of everything than an ordinary arm can do. As part of this bonus action, you can draw or sheathe any number of weapons or items. You can end the transformation as a bonus action.
For the duration, you have advantage on all Strength checks which involve the use of your arms. Also, when you take the Use an Object action, you can interact with one additional object.
Once you use this feature, you cannot use it again until you finish a long rest.
Art Credit
Four Arms by Anthony Feliciano
Watercolor texture by cgarofani
Four-armed Frost Giant by Florian Stitiz