Warlock - Pact of the Heart

by somanyrobots

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Warlock Pact

Pact of the Heart

Your patron has touched you directly, implanting a shard of its power within your very body. Your essence now burns with your patron's might, endangering your life for the privilege of channeling that power directly. You gain the following benefits when you cast a spell of 1st level or higher with your Pact Magic feature:

  • You can choose to lose a number of hit points equal to your Charisma modifier + the spell's level. If you do so, you gain twice as many temporary hit points.
  • You can choose to take force damage equal to your proficiency bonus, and then one target of the spell takes twice as much force damage, which can't be resisted or reduced in any way.

You can trigger both effects when you cast a spell, in the order of your choice.

Invocations

Resilient Heart

Prerequisite: Pact of the Heart


When you cast a warlock spell, you can add half your warlock level to the temporary hit points you gain from your pact boon.

Smoldering Flame

Prerequisite: Pact of the Heart, 5th level


You can apply your Pact benefits when casting warlock cantrips.

Vengeful Soul

Prerequisite: Pact of the Heart


Anytime a creature damages you while you have temporary hit points, you gain advantage on your next attack roll against the creature that damaged you.

Patron's Avatar

Prerequisite: Pact of the Heart


With a piece of your patron inside of you, you gain the ability to change into a form reflecting their majesty. You learn the spells fearsome visageSDS and captivateSDS. You can cast one of them once without using a warlock spell slot. Once you cast one of these spells in this way, you can’t do so again until you finish a long rest.

Armor of Pain

Prerequisite: Pact of the Heart, 5th level


While you are not wearing any armor, your Armor Class equals 10 + your Dexterity modifier + your Charisma modifier. In addition, when you have temporary hit points gained through your pact boon, attacks against you are made with disadvantage.

Power Through Pain

Prerequisite: Pact of the Heart, 9th level


You can burn your life force to restore your arcane power. As a bonus action, you can lose half your current hit points to recover one expended Pact Magic spell slot. You can do so once, regaining the ability after finishing a long rest.

Eldritch Fist


When you cast a warlock cantrip that allows you to make one or more ranged spell attacks, you can make melee spell attacks instead.

Pact of the Heart

For the Omega Warlock, a warlock revision that turns pacts into proper subclasses.


Your Pact of the Heart has allowed your patron to implant a shard of its power within your very body. Your essence now burns with your patron's might, endangering your life for the privilege of channeling that power directly.

Pact of the Heart Features

Warlock Level Feature
1st Searing Power
3rd Armor of Pain
5th Wave of Agony
9th Vengeful Soul, Power Through Pain
18th Eldritch Heart

Searing Power

At 1st level, you gain the ability to sacrifice some of your own life force to fuel your magic. You gain the following benefits When you cast a spell of 1st level or higher with your Pact Magic feature:

  • You can choose to lose a number of hit points equal to your Intelligence modifier + the spell's level. If you do so, you gain twice as many temporary hit points.
  • You can choose to take force damage equal to your proficiency bonus, and then one target of the spell takes twice as much force damage, which can't be resisted or reduced in any way.

You can trigger both effects at the same time when you cast a spell, in the order of your choice.

Armor of Pain

At 3rd level, your eldritch heart grants you supernatural defenses. while you are not wearing any armor, your Armor Class equals 10 + your Dexterity modifier + your Intelligence modifier. In addition, when you have temporary hit points gained through your pact boon, attacks against you are made with disadvantage.

Wave of Agony

At 5th level, when you cast a warlock spell that deals damage, creatures of your choice within 10 feet of you take bonus damage equal to your Intelligence modifier. This damage is force damage, unless you and your GM choose a type more appropriate for your patron.

Vengeful Soul

At 9th level, your pain drives you to fight harder. Anytime a creature damages you while you have temporary hit points, you gain advantage on your next attack roll against the creature that damaged you.

Spreading Agony

Also at 9th level, your pulsing heart can push its pain farther. While you have temporary hit points, your Wave of Agony's range increases to 20 feet.

Eldritch Heart

At 18th level, your patron's power pulses outward from you in a mighty torrent. As a bonus action when a creature takes damage from your Wave of Agony, you can cast a warlock cantrip at it.

Invocations

Eldritch Fist


When you cast a warlock cantrip that allows you to make one or more ranged spell attacks, you can make melee spell attacks instead.

Spells

Captivate

2nd-level enchantment


  • Classes: Bard, Warlock
  • Casting Time: 1 action
  • Range: Self (60-foot radius)
  • Components: V, S
  • Duration: 1 minute
  • Replaces: Enthrall

You enact a performance laced with subtle magic, your gestures and voice causing others to focus on you to the exclusion of all else. Creatures you choose within range must succeed on a Wisdom saving throw or be charmed by you. If you or your companions are fighting a creature, it has advantage on the save. While charmed by you in this way, a creature has disadvantage on initiative rolls as well as Wisdom (Perception) checks made to perceive any creature other than you until the spell ends, or until the target can no longer see or hear you.

Additionally, if a creature rolls initiative while affected by this spell, its speed is reduced by 10 feet and it can’t take reactions until after its first turn ends. The spell ends if you are incapacitated or can no longer speak. A creature that fails its saving throw doesn’t realize that you used magic to influence it, even if it witnessed the spell being cast.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the duration increases by 1 minute and the radius increases by 10 feet for each slot level above 2nd.

Fearsome Visage

1st-level illusion


  • Classes: Warlock, Wizard
  • Casting Time: 1 action
  • Range: 90 feet
  • Components: V, M (a dead spider)
  • Duration: Concentration, up to 1 minute
  • Replaces: Cause Fear

You bewitch a creature’s mind, terrifying it. The target must succeed on a Wisdom saving throw or become frightened of you for the duration. It can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. A target that is more than 90 feet away from you has advantage on its saving throw.

At Higher Levels. When you cast this spell using a 2nd level or higher, you can target one additional creature for each slot above 1st.

Changelog

v0.3

  • Omegalock adjustments based on suggestions from SwEcky
    • Replaced Power Through pain with Spreading Agony
    • Reworked Eldritch Heart to a BA trigger

v0.2

  • Made pact force damage irresistible

v0.1

  • Rough Draft

Credits & References:

Omega Warlock

Spells
  • Captivate and Fearsome Visage by Omega Ankh and somanyrobots

Art

Art © Wizards of the Coast LLC

  • Vanish Into Eternity, by Magali Villeneuve
  • Ral Zarek, by Eric Deschamps

Background Image Stains

Jared Ondricek


License

© 2025 somanyrobots, CC BY-NC 4.0



Includes spells from Spells That Don't Suck by Omega Ankh and somanyrobots, which is licensed CC-BY and available here.


Fan Content Policy

This work is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.


5E SRD Content
  • This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC, available here.

  • The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available here.