Invoker Attack 19Astral Tempest
You breach the wall between this world and an astral dominion, causing a storm of divine energy to rip through your foes, scattering them, before it dissipates.
Daily Divine, Implement
Standard Action Area burst 2 within 10 squares
Target: Each creature in the burst
Attack: Wisdom vs. Fortitude
Hit: 7d6 + Wisdom modifier damage, and you slide the target 5 squares and knock it prone.
Miss: Half damage, and you slide the target 3 squares and knock it prone.
Published in Player's Handbook 2, page(s) 110.