These are all the mechanically unique two-prize Mewtwo cards from Base Set up until Paradox Rift
Jadelight Ranger sees more play and is more powerful but Jadelight is just another 3 drop value dork, a thing green has so many of I did a top 10 list just for them
Gather a swarm of Insects that can link together to create a 3000 ATK Insect that can Tribute other Insects to deploy a stronger one or to prepare an attack with its power to climb all the way to 5000 ATK
And "True Exodia", a joke card, makes it so that if it and the 4 "Forbidden One" limbs are out on the field, the opponent of its controller wins the Duel
You are allowed to just play good Enchantments that bring creatures back from Graveyards every turn like Debtors' Knell does and laugh at everyone in topdeck mode while you play their decks
Getting a whole set of old, out-of-print cards is as easy as Googling Magic proxies, contacting a vendor, and using PayPal to order a full set of the Power Ninethe rarest, most expensive, and powerful cards in the game