Once within 5 of your turns, while your king is in check: swap your king with one of your rooks standing on a square that is not currently attacked.
You draft Priest Hole in Buff mode. Activated: you choose when to use it, and using it is your move for that turn.
As a protection card, it shields a piece or bars squares from the opponent.
“The bookshelf spins. The king dusts himself off elsewhere.”
Needs one of your rooks in play.