Serrgh, Violence Benefator

When Serrgh attacks you may discard a card at random from your hand. If you do and Serrgh deals combat damage to an opponent you may cast that card without paying it's mana cost, or if it's a land you may put it on the battlefield.
As long as your other Commander doesn't have a color identity of Red it gains Partner (You can have two commanders if both have partner.)
Partner (You can have two commanders if both have partner.)