Sometimes pain is the price of victory. To wrack your opponent's mind, you might have to give up a fragment of your own sanity.

Encounter   ✦     Arcane, Implement, Psychic
Standard Action      Ranged 10

Target: One creature

Attack: Charisma vs. Will

Hit: 2d12 + Charisma modifier psychic damage.

Miss: You can take 10 psychic damage to reroll the attack roll.

  Dark Pact: If you reroll the attack roll and hit, reduce the psychic damage you take by your Intelligence modifier.

Published in Arcane Power, page(s) 76.