Byrant, Fierce Executioner

Whenever you sacrifice a creature, Byrant deals 1 damage to each opponent. If that creature was legendary, Byrant deals 3 damage to each opponent.
Whenever you sacrifice a creature, you may pay {x}, where {x} is that creature's CMC, if you do, return that creature to the battlefield at the beginning of your next upkeep.
{3}{w}{b}{r}{t}, gain control of target creature until end of turn. Untap target creature you control.