Spaceship Hive

{t}: Add {b}{b}{b} to your mana pool
X{4}{b}, {t}: Put X black 1/1 Facehugger creature tokens with deathtouch onto the battlefield under your control.
When a Facehugger creature token you control destroys another creature, put a black 1/1 Xenomorph Alien creature token with Deathtouch and Evolve onto the battlefield under your control.