Iron Man

Flying
Heroic - Whenever you cast a spell that targets
Iron Man, you may pay {x}. If you do, put X
+1/+1 counters on Iron Man.
Other artifact creatures you control get +1/+1.
"We need to be put in check. Whatever form that
takes, I'm game. If we can't accept limitations, we're boundless, we're no better than the bad guys."