Smough, Executioner

Partner with Ornstein, Dragon Slayer.
Trample.
{2}{b}, Sacrifice another creature: Smough gets
+X/+X until end of turn where X is the
sacrificed creature's power.
Whenever another commander you control dies,
exile it. For as long as that card remains exiled,
Smough gains "{r},{t}: Smough deals 3 damage to target creature or player".