Green Decay

3rd-level transmutation

Casting Time: 1 action

Range: 30 feet

Components: V, S, M (a pinch of green mold)

Duration: Instantaneous

You accelerate the forces of decay on all undead creatures within range. Each must make a Constitution saving throw. Each undead in darkness makes its saving throw with advantage. Each undead in bright light makes its saving throw with disadvantage. Each undead with a challenge rating of 2 or higher automatically succeeds on its save. On a failed save, the undead is destroyed, decaying into a pile of harmless green mold. On a successful save, the undead can’t take bonus actions or reactions until the start of your next turn.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, increase the minimum challenge rating required to automatically succeed on the saving throw by 1 per slot level above 4th.

Section 15: Copyright Notice

Sandy Petersen’s Cthulhu Mythos, © 2018, Petersen Games; Authors: Sandy Petersen, David N. Ross, James Jacobs, Arthur Petersen, Ian Starcher.

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