Play a Ring of Morrigan and Kythera Mechanism, and then cast Chaoswish. Choose to recast Chaoswish every time with the Kythera Mechanism, and ping your opponent for 20 with Ring of Morrigan. Chaoswish can also get you non-unique cards that you need, and the Duplicator restriction does not apply to your collection, so Erik’s Curiosa can get you other good cards. The Immortal Throne is an alternate win condition that you can use as well.