Cowboys From Hell

Soulwalk 3,{5} (Tap mana cost, sacrifice
Soulwalk cost in creatures you control to add
their power and toughness to this creature).
Bondage (This creature and another target
creature you control with Bondage that shares a
type, gain each others abilities).
When Cowboys From Hell enters the battlefield, target opponent draws a card and discards a card
at random. They take damage equal that cards converted mana cost.