2011-09-22 : 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.

2011-09-22 : 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.

2011-09-22 : You can only activate the ability if you control Mirror-Mad Phantasm, even if you don’t own it.