Sombra, Master Hacker

Ultimate: EMP - (Sombra, Master Hacker enters the battlefield with three charge counters on her. At the beginning of your upkeep, remove a charge counter, then, when the last is removed, put a charge counter on target creature and up to two target creatures get -1/-2 until the end of turn, then place three charge counters on Sombra.)
Should Sombra die, you may pay {b}{b}{b} and if you do, exile her, then return her to the battlefield tapped.