You hurl a crystalline sphere of magic at your foes. On impact, it splinters into hundreds of tiny, radiant blades, which slice into your enemies and slow their movement.

At-Will   ✦     Divine, Implement, Radiant
Standard Action      Area burst 1 within 10

Target: Each creature in the burst

Attack: Wisdom vs. Fortitude

Hit: Wisdom modifier radiant damage, and the target is slowed until the end of your next turn.
Level 21: 1d10 + Wisdom modifier radiant damage.

Published in Player's Handbook 2, page(s) 103.