Gluttonous Anomalocaris

Upkeep - Return target creature you control to its owner's hand.
Symbiosis {1}{g} (Whenever a counter of any kind is placed on this creature, you may pay {1}{g}. If you do, put a counter of the same kind on another target creature.)
Whenever a creature leaves the battlefield, put a +1/+1 counter on Gluttonous Anomalocaris.