29 Sept 2017
If the mana cost of a card in your graveyard includes X, X is considered to be 0.
29 Sept 2017
All attackers are chosen at once. You can’t attack with Bishop of Rebirth, return a creature card to the battlefield, and then attack with that creature.
29 Sept 2017
If the creature returned to the battlefield has any abilities that trigger when creatures attack, those abilities won’t trigger.