Dawn-Shimmer Paladin

Allegiance 5 - (You may choose to pay {r/w}{r/w}{r/w}{r/w}{r/w} instead of this card's regular mana costs
whenever you cast it.)
Vigilance, Lifelink.
When Dawn-Shimmer Paladin enters the battlefield, if you cast it for it's Allegiance cost,
put 2 +1/+1 counters on it and destroy all
non-White, non-Human creatures an opponent controls.
"Countless stirrings of the unholy, brought down and
driven into the soil at sunrise..."