Visions of Armageddon

At the beginning of your end step, if you control
"Alexandrite, Always More" or a Alexandrite
Planeswalker, "Katherine, The Insatiable Mind"
or a Katherine Planeswalker, and "Rye, Divine
Temptress" or a Rye Planeswalker, you win the
game.
"And the prophecy says true: if the trinity should
ever be convoked, earth will bleed and stars will shine
gold to herald the end of the eternal cosmos."
- The Enchiridion, Book III