Egg

Whenever a creature is blocked by an Egg,
Exile the Egg and tap the blocked creature,
It cannot untap, after 2 turns destroy the
creature and create a token copy of that creature
under your control thats a Xenomorph in
addition to its other types.
An opponent may choose to sacrifice the
creature before it is copied but they must pay {6} If they do, you dont create a copy of that
creature.