Cal, The Dominator

Menace, Hexproof
{w}{w}{w}: Pay {x} life then destroy target creature
with converted mana cost {x} or less.
{b}{b}{b}: Sacrifice a creature then destroy target creature with equal power or less to the creature
you sacrificed.
{1}{w/b}{w/b}: If you have 15 or less life and no creatures other than Cal on the battlefield destroy all
creatures target player controls, activate only on
your turn and only once every other turn.