Posiedon, God of the Ocean

Islandwalk, indestructible
As long as your devotion to blue and green is less than 10, Poseidon isn't a creature.
When you cast a creature, if it has a unique creature type among creatures you control, put a +1/+1
counter on it. It gets +2/+2 and haste until end of
turn if it has a unique creature type among creatures
you control and in your graveyard.