Krav, Eternal Warrior

When Krav, Eternal Warrior enters the
battlefield you gain 4 life and each
opponent sacrifices 3
permanent he or she controls. Take another
turn after this one.
Flying, Vigilance, Indestructible,
Deathtouch, Double Strike,
Protection from everything, Lifelink,
Annihilator 5
{x}: Your opponents sacrifice X creatures
and you gain X life