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Sign of Eibon

3rd-level evocation

Casting Time: 1 action

Range: Self

Components: V, S

Duration: Concentration, up to 1 minute

You draw a sign in the air that enhances your magical power. Each spell you finish casting while maintaining concentration on this spell takes effect as if you had cast it with a spell slot one slot level higher than you actually expended for that spell. If you cease concentration on this spell as a result of casting a new spell, its effects are not enhanced and Sign of Eibon ends. Spells enhanced in this way cannot benefit from any other effect that alters their effective slot level.

Section 15: Copyright Notice

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