Wah, the Skies Talon

Trample, flying
{6}{g}{u}: Monstrosity 4. This ability costs {1} less
to activate for each card in your hand. (If this
creature isnt monstrous, put four +1/+1 counters on it
and it becomes monstrous.)
Whenever Wah, the Skies Talon becomes
monstrous, creatures you control gain flying and indestructible until end of turn.