Is Mirror-Mad Phantasm legal in Standard, Modern, and Commander?

Mirror-Mad Phantasm is legal in: Modern, Legacy, Vintage, Commander.

Mirror-Mad Phantasm

Q: What type of card is Mirror-Mad Phantasm?

Mirror-Mad Phantasm is a Creature — Spirit. Its oracle text reads: "Flying {1}{U}: This creature's owner shuffles it into their library. If that player does, they reveal cards from the top of that library until a card named Mirror-Mad Phantasm is revealed. The player puts that card onto the battlefield and all other cards revealed this way into their graveyard."

Creature — Spirit

Flying

: This creature's owner shuffles it into their library. If that player does, they reveal cards from the top of that library until a card named Mirror-Mad Phantasm is revealed. The player puts that card onto the battlefield and all other cards revealed this way into their graveyard.