Parasite Impregnator

Parasite Impregnator can only be blocked by one
creature.
When a creature dealt damage by Parasite
Impregnator this turn dies, create a 0/2 blue Egg
creature token with defender and "{t}, Sacrifice
this creature: Search your library for a
Xenomorph with converted mana cost 5 or less,
reveal it, and put it into your hand, then shuffle
your library."