Visitors

Enchant player
During enchanted player's upkeep, that player
abducts a creature they control.
(Exile that creature. At the beginning of the next end
step, keep it on any one facility you or an identical
player control. If you can't, return it to the battlefield
under its owner's control.)
If no creatures were abducted during enchanted
player's upkeep, sacrifice Visitors and create a
Alien Lizard token under your control.