The Creemlies

Whenever The Creemlies deals combat damage,
create a 1/1 red Goblin token with "When this
creature dies, it deals damage equal to it's power
to any target."
At the beginning of your combat step, you may sacrifice a Goblin token you control. If you do,
The Creemlies gets +1/+1 until end of turn equal
to that token's power.