You make yourself or an ally seem to be standing somewhere else, avoiding an enemy's attack.

Encounter   ✦     Arcane, Illusion
Immediate Interrupt      Ranged 5

Trigger: A ranged or a melee attack hits you or an ally within 5 squares of you

Effect: The attacker must reroll the attack roll and use the new result.

Update (1/24/2012)
Updated in Class Compendium.

Published in Player's Handbook, page(s) 165, Class Compendium.