Tah, Valley Maker

Trample, haste
{7}{r}{g}: Monstrosity 6. This ability costs {1} less
to activate for each land card in your graveyard.
(If this creature isnt monstrous, put six +1/+1
counters on it and it becomes monstrous.)
Whenever Tah, Valley Maker becomes
monstrous, creatures you control gain haste and indestructible until end of turn.