The Creeping Doom

You have become tainted by a pact with a being of slow, vile corruption. The being’s plans span millenia, relying on the inexorable march of entropy. Your role may be part of the ultimate culmination of these ancient machinations or merely the first falling domino. Beings of this sort include Moander, Juiblex, Zuggtmoy, and powerful paeliryons and sibriexes.

Expanded Spell List

1st-level Creeping Doom feature

The Creeping Doom lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Note: This class gives access to several spells outside the Basic Rules, which are highlighted with an asterisks. Adding these spells automatically is not possible for homebrew on dndbeyond currently. If choosing one of these spells, please add them manually to your character.

Creeping Doom Expanded Spells

Spell Level	Spells
1st	bane, Tasha's caustic brew*
2nd	acid arrow, phantasmal force*
3rd	slow, tidal wave*
4th	freedom of movement, vitriolic sphere*
5th	contagion, passwall

Corrosive Magic

1st-level Creeping Doom feature

Your spells are inherently caustic, allowing you to decay those affected by them. While you’re concentrating on a spell, you can use your bonus action to deal acid damage to each creature of your choice that is currently affected by that spell. The damage dealt this way is equal to your Charisma modifier.

Partially Amorphous

1st-level Creeping Doom feature

You can compress your body to move through tight spaces. You can move through a space as narrow as 1 foot wide without squeezing and spaces as narrow as ½ foot while squeezing.

Soul of Sludge

10th-level Creeping Doom feature

You have begun to take on the properties of an ooze. You gain resistance to acid damage and any critical hit against you becomes a normal hit. In addition, you gain a climb speed of 10 feet. You can hang upside down while climbing.

Caustic Body

6th-level Creeping Doom

You can coat your body in a caustic slime. You learn the spell Armor of Agathys*. It counts as a warlock spell for you, but it doesn’t count against the number of spells you know. You can cast it on yourself at will as a 1st-level spell, without expending a spell slot or material components.

Whenever you cast this spell, your patron’s magic enhances and modifies it. Replace the damage type for this spell with acid, poison, or necrotic (your choice when you cast the spell). Moreover, when a creature takes damage from this spell, it has disadvantage on attack rolls until the end of the turn.

Note: Spells outside the basic rules cannot be added automatically, please add armor of Agathys manually.

Zone of Corruption

10th-level Creeping Doom feature

You learn the spell sickening radiance*. It counts as a warlock spell for you, but it doesn’t count against the number of spells you know. You can also cast it once without a spell slot, and you regain the ability to do so when you finish a long rest. Replace the damage type for this spell with acid, poison, or necrotic (your choice when you cast the spell).

Note: Spells from outside the basic rules cannot be added automatically, please add sickening radiance manually.

Slimeulacrum

14th-level Creeping Doom feature

You can create a temporary duplicate of yourself out of slime. As an action, you can cast the spell simulacrum on yourself without expending a spell slot or material components. This simulacrum lacks this feature and vanishes after 1 hour.

Once you use this feature, you can’t use it again until you finish 1d4 long rests.