Giant Copper Golem

Trample, ward {3} (Whenever this creature becomes
the target of a spell or ability an opponent controls,
counter it unless that player pays {3}.)
Whenever Giant Copper Golem becomes
blocked by a creature an opponent controls,
double Giant Copper Golem's power.When
Giant Copper Golem's power becomes 24,
exile target permanent. If that permanant's
converted manna cost is more than five, double
Giant Copper Golem's power.