As an additional cost to play Banned Eldraine Card, pay B, 3RG, 3R, 2, 0, or 1G. It becomes a copy respectively of Cauldron Familiar, Escape to the Wilds, Fires of Invention, Lucky Clover, Mystic Sanctuary, Once Upon A Time for the rest of the game in all zones. (You can t choose Oko. Because let s be real, nobody wants to play against Oko again.)