Your hasty spell draws on your greatest strength to cover your weaknesses.

Encounter   ✦     Arcane
Immediate Interrupt      Personal

Trigger: An enemy makes an attack roll against you

Effect: You gain a +4 bonus to your highest defense for this attack only, and the triggering enemy's attack targets that defense. If the attack hits, it deals half damage to you.

Published in Arcane Power, page(s) 82.