Narrl, Goblin Paladin

First Strike
Whenever a nontoken Goblin enters the
battlefield under your control, creatures you
control get +1/+1 until end of turn.
Whenever Narrl, Goblin Paladin deals combat
damage to an opponent, you may sacrifice any
number of Goblins. If you do, deal X damage to
any target where X is the number of Goblins
sacrificed.