Captain America

When the only other players are Earth, their teammates, and your teammates, reveal Captain America. You all win. When there is no Earth,
you lose.
You may flip this card face up at any time. When
you do, prevent all damage that would be dealt to target player this turn. You may distribute a
number of +1/+1 counters equal to the amount
of damage prevented this way among any number
of creatures you control.