Smough, the Executioner

Trample, double strike, lifelink, devour 2
Partner with Ornstein, the Dragon Slayer
When this creature enters the battlefield, you
may put Ornstein, the Dragon Slayer into your
hand from the command zone.
Whenever this commander creature is
sent to the graveyard from the battlefield, if you
control Ornstein, the Dragon Slayer exile this
creature and Ornstein gains all abilities of this creature.