Dargo, the Shipwrecker [CMR] 172

Legendary Creature — Giant Pirate

As an additional cost to cast this spell, you may sacrifice any number of artifacts and/or creatures. This spell costs (2) less to cast for each permanent sacrificed this way and  less to cast for each other artifact or creature you've sacrificed this turn.
Trample
Partner (You can have two commanders if both have partner.)