Skyclave Apparition
From Modern Horizons 3 Commander set
Skyclave Apparition
Creature — Kor Spirit
2/2
When this creature enters, exile up to one target nonland, nontoken permanent you don't control with mana value 4 or less.
When this creature leaves the battlefield, the exiled card's owner creates an X/X blue Illusion creature token, where X is the mana value of the exiled card.