Lazav Deceiver of Minds

Flash
{t}{x}{b}{b}{u}{u}:Create X 1/1 white and black
Aktos Tarr creature tokens with: Deathtouch Sacrifice this creature after it has destroyed one creature. Use this ability any time you could cast
an instant. This creature does not untap until
an opponent plays a creature.
{x}{u}{u}{b}{b}: Sacrifice a nontoken creature with toughness X or less. Untap this creature.