Nergigante, Eater of Elders

Nergigante, Eater of Elders costs {2} less to cast
for each Elder Dragon you control.
Trample, Reach
Whenever Nergigante, Eater of Elders is dealt
damage, put a spike counter on it. If there are
three or more spike counters on Nergigante,
Eater of Elders, remove all of them.
Nergigante, Eater of Elders deals damage equal to
its power to any target.