Smite Elemental Creature

although, the ampersand piece on the upcoming warpriest build says "most deities view undead creatures as abominations that must be destroyed", it seems to me that a more unifying power than smite undead would be something like smite elemental creature--you know, dawn war and all of that stuff.

it would be quite simple to make available to every cleric the following alternative channel divinity power:

Smite Elemental Creature
Cleric Attack
You scorch an elemental foe with your weapon, driving it back and then binding it in place.
Encounter (Special) Channel Divinity, Divine, Radiant, Weapon
Standard Action Melee weapon
Target: One elemental creature
Attack: Wisdom vs. Will
Hit: 2[W] + Wisdom modifier radiant damage, and you push the target a number of squares up to 3 + your Constitution modifier. The target is immobilized until the end of your next turn.
Level 11: 3[W] + Wisdom modifier radiant damage.
Level 21: 4[W] + Wisdom modifier radiant damage.
Miss: Half damage.
Special: You can use only one channel divinity power per encounter.