Halea, the Purifier's Hand

Whenever another creature enters the battlefield, Halea, the Purifier's Hand deals 2 damage to it. Creatures you control dealt damage this way get +2/+0 and gain haste until end of turn.
{1}{w}: Halea, the Purifier's Hand gains lifelink until end of turn.
"Avacyn shows us the way! Only the impure will burn under the fire of her wings!"