Homebrew:Entropy Domain
(OOC: This is an implementation of the Entropy Domain subclass from Xanathar's Lost Notes to Everything Else)
Base Class: Cleric
Heretics preach of a void at the center of the universe that dying gods created to devour the Weave. The necrotic energy it emits is called entropy, a potent force that clerics can harness to shield themselves from magic and annihilate arcane casters. The chained god Tharizdun claims this domain, while in Chessenta, a giant sphere of annihilation is worshipped as an aspect of Entropy itself. Cultists who wield the power go by many names: thaumatoclasts, entropomancers, or entropists.
| Cleric Level | Spells |
|---|---|
| 1st | detect magic, inflict wounds |
| 3rd | mind spike, shadow blade |
| 5th | dispel magic, life transference |
| 7th | blight, black tentacles |
| 9th | circle of power, synaptic static |
Sanctity of Body
When you choose this domain at 1st level, you perform a ritual to anchor your soul to the Material Plane. You have advantage on death saving throws.
Channel Divinity: Arcane Disruption
Starting at 2nd level, you can use your Channel Divinity to disrupt the flow of magic in your vicinity.
As an action, you conjure an aura of disruptive energy that radiates from you in a 15-foot radius. The aura lasts until the end of your next turn, and moves with you, centered on you. While inside the aura, any creature that attempts to cast a spell must first succeed on a Constitution saving throw. If they fail the save, their spell fails to cast and the spell slot is wasted.
Channel Divinity: Entropic Retaliation
At 6th level, you can use your Channel Divinity to drain a caster’s magical power. When you succeed on a saving throw against a spell or successfully disrupt a spell using Arcane Disruption, you can use your reaction to force the caster to make a Constitution saving throw. On a failed save, the caster loses an additional spell slot of the same level. If they possess no more slots of that level, they instead gain a level of exhaustion.
Potent Spellcasting
Starting at 8th level, you add your Wisdom modifier to the damage you deal with any cleric cantrip.
Emissary of Entropy
At 17th level, you have advantage on saving throws against spells. In addition, when you succeed on a saving throw against a spell, you gain 5 temporary hit points for each slot level of the spell.