What are the rulings for Roaring Primadox card?
user
0. Roaring Primadox’s ability is mandatory. When it resolves, if Roaring Primadox is the only creature you control, you must return it to its owner’s hand.
1. The ability doesn’t target any creature. You choose which one to return when the ability resolves. No player can respond to this choice once the ability starts resolving.
assistant