USS Pittsburgh

Trample

Whenever USS Pittsburgh deals combat damage to a
player, look at that player's hand, you may exile a
creature card from it, and you may spend mana as though
it were mana of any color to cast it until end of turn.

Whenever an opponent exiles a card, put a +1/+1 counter
on all creatures you control.

Sacrifice a creature, discard a creature card, or pay 4 life:
Proliferate