Anylla, Master Transmuter

Eminence — At the beginning of your upkeep, if Anylla is in the command zone or on the battlefield, you may pay {w/u}{u/b}. If you do, exile target nonland permanent you control, then return
it to the battlefield under its owner's control.

Whenever a permanent you control enters from exile, create a 1/1 colorless Thopter artifact creature token with flying.