Jailer Sphinx

Deathtouch
When Jailer Sphinx comes into play, exile target creature under Jailer Sphinx. Create and put
into play tapped X 1/1 white and blue Eldrazi
Prankster Artifact Creature tokens, where X was
the converted mana cost of the exiled creature
card.
When Jailer Sphinx leaves play, return all
cards exiled this way.