Azor's Endless Archives

Catalogue 15 (As this enters the library zone, put the top fifteen cards of a library you own face up on top of this card as a new library. As this becomes empty, put it into its owner's graveyard.)
Whenever you draw the last card in this library, create a 6/6 legendary blue and white sphinx creature token with flying, vigilance, and shroud named Azor, Knowledge Restorer. Then, exile