Unus

Hexproof
Commander tax for Unus may be paid with life.
{b}{x}{t}: Sacrifice X creatures you control and
deal damage equal to the amount of creatures sacrificed this way to a target creature or player.
{b}: Sacrifice a creature and gain life equal to it's toughness.
Partner
''When the road gets tough ahead, you can just
dig a grave, throw your friend in instead.''