This audacious win relies on Vedalken Orrery to bypass sorcery-speed restrictions, letting you cast Apocalypse during the end step right before your turn. When Apocalypse resolves, it wipes the board of all permanents and empties your hand, leaving you with a completely clean slate. That sudden emptiness is precisely what lets Barren Glory—cast just moments earlier at instant speed—survive as your sole remaining permanent and empty-handed state, satisfying its bizarre upkeep trigger to claim an instant victory.