What are the official rulings for Mirror-Mad Phantasm?
user
0. If another creature (such as Necrotic Ooze) gains Mirror-Mad Phantasm’s activated ability, its owner reveals cards until they reveal a card named Mirror-Mad Phantasm.
1. If no card named Mirror-Mad Phantasm is revealed (possibly because it was a card copying Mirror-Mad Phantasm or it was a token), all cards from that library will be put into their owner’s graveyard.
2. You can only activate the ability if you control Mirror-Mad Phantasm, even if you don’t own it.
assistant