Turn Undead

White and Green Cleric type creatures gain:
{t} Tap a target Undead creature with a CMC
less than the Clerics +2 until end of turn. Untap
that creature. It gains haste until end of turn.
{t} Tap X target Undead creatures that have
either a CMC of 1 or a base power and
toughness of 1/1. Where X is the Clerics CMC.
{t} Destroy target Undead creature with a CMC
3 or more less than the Cleric's.
White Paladins gain the same but use their power
minus two instead of their CMC.