how big can a yugioh deck be Complete Custom for Yu-Gi-Oh! GX Yu-Gi-Oh!: 10 Strongest Structure Decks

For one, it's a fracturefoil, which any card with that treatment will be worth a lot

#3 Magmatic HellkiteMagmatic Hellkite I like stun counters, its an elegant design to circumnavigate the challenge of remembering that you werent supposed to untap your creature this turn, with built-in scalability to enable soft removal designs that put more stun counters on a thing to take it out of action for more than a single turn

Counter something and kill a 'walker

In decks like these, Sheoldred is a terrifying top-end threat particularly when your Urborg makes her unblockable

Free magnetic case

I am unfamiliar with the exact count of blue cards required to be in your deck to consistently be able to cast Force of Negation Turn 1, but adjustments could be made if necessary