Yawgmoth, God of Phyrexia

Haste
{3}{b}{b} Sacrifice a creature: Yawgmoth, God of Phyrexia gains Annihilator {x} till end of turn where {x} is equal to that creatures converted mana cost
If Yawgmoth, God of Phyrexia would be destroyed transform it instead
"None will be spared"