yugioh koa ki meiru cards Koa'ki Xyz - Realistic destroy all monsters equipped to it by this effect instead. Koa'ki Meiru Guardian Secret Slayers

This is the most restrictive stage of banning, as you are not allowed any copies of a limited card in your deck

Highlighted by Redditor chappers, it appears that serialized cards will be returning in Collector Boosters of the upcoming Lord of the Rings: Tales of Middle-Earth set

For example, they use different attacks and are sometimes different types

Nausea never looked so potent

But ultimately I do think Arthur, Marigold Knight is the better (and more flexible) card

Do you want to flood the board with tokens, generate more mana than all your opponents combined, or cast something enormous and ask the table to deal with it