Splintering Barkfiend

Splintering Barkfiend enters the battlefield with
four +1/+1 counters on it.
Whenever this creature deals combat damage to
a player, you may remove that many +1/+1
counters from it, if you do, create that many 1/1
green saproling creature tokens.
Sacrifice three saproling creatures: Return
Splintering Barkfiend from your graveyard to
your hand.