Taresas, Keeper of Skies

Indestructible
•As long as your devotion to white, blue, and black is less than 6, Taresas, Keeper of Skies is not a creature.
•Taresas, Keeper of Skies enters the battlefield tapped.
•Burden of the Sky - You may choose not to untap this card during your untap step. If this card is ever untapped, any player can tap a creature they own. This card then loses Burden of the Sky, and the newly tapped creature gains Burden of the Sky. If no one chooses to untap, this ability destroys all c