You call on a demonic entity to wreak greater destruction, but you tear part of your own mind in the process.

Encounter ✦     Arcane, Psychic
Free Action      Personal

Trigger: You roll damage and dislike the result.

Effect: You reroll the damage and must use the second result. You then take psychic damage equal to twice your level.

Published in Into the Unknown: The Dungeon Survival Handbook, page(s) 69.