A stroke of lightning strikes your foe from overhead, followed by a concussive boom.

Encounter   ✦     Arcane, Implement, Lightning, Thunder
Standard Action      Area burst 1 within 20 squares

Target: Each creature in the burst

Attack: Charisma vs. Reflex

Hit: 2d8 + Charisma modifier thunder damage. If the target is in the burst's origin square, it takes 3d8 extra lightning damage.

  Storm Magic: A target hit by this power is also knocked prone.

Revision (10/13/2009)
On the Hit line, replace the second sentence with the following: “If the target is in the burst's origin square, it takes 3d8 extra lightning damage.”

Published in Arcane Power, page(s) 37.