Aleona, Dreamkeeper

Dreamweaving — At the beginning of your end step, create a 1/1 white and blue “Dream” creature token with flying.
Whenever one or more Dream creatures you control attack, you may tap or untap up to that many target permanents.
Sacrifice three Dream creatures: Return target nonland permanent to its owner’s hand.

“She tucks in the moon, whispers to the stars, and hums the world to sleep.”