Mah, the World Sentry

Trample, hexproof
{8}{g}{g}: Monstrosity 6. This ability costs {1} less
to activate for each creature you control. (If this creature isnt monstrous, put six +1/+1 counters
on it and it becomes monstrous.)
Whenever Mah, the World Sentry becomes monstrous, creatures you control gain trample
and indestructible until end of turn.