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This is any card that has a variation of you win the game or an opponent loses the game in the text

The only downside is you can only have two in your deck

Heres every MTG March of the Machine: Aftermath card in the set separated by Desparked planeswalkers and Multiverse planes

A PSA 10 version currently sells for about JPY 25,000

You can deal lots of damage from only a few energy card and its mega evolve has a powerful upper cut. My favourite is Joltik, says Nagashima

Then just combo off with all the creatures in your deck, just make sure that they have strong enter the battlefield triggers or other effects to take out all your opponents in a single turn