Sehanine's blessing turns the powers of your enemies against them.

Encounter ✦     Channel Divinity, Divine
No Action      Ranged 5

Trigger: You roll a natural 20 on a saving throw against an effect that a save can end.

Target: One enemy

Effect: The target suffers the effect (save ends).

Special: You can use only one channel divinity power per encounter.

Update (4/20/2011)
Power updated to match Class Compendium.

Published in Player's Handbook, page(s) 200, Class Compendium.