yugioh chaos cards YU-GI-OH! - Dark Magician of (BP02-EN023) - Battle Pack 2: War of The Giants - 1st Edition Featuring Yami Yugi on the pack and box Chaos Angel - YuGiOh

Pokemon TCG Pocket makes use of troublesome Abilities, game-breaking rules, and card effects that can potentially keep your opponent stunned

That's the back of the cards

A blue sorcery spell from the MTG set Shadowmoor, Savor the Moment is an extra turn spell with a big catch

Considering how much the ink versions are already going for, I can't imagine how much the Gold Foil variant would actually be valued at, maybe you just win at money and never have to pay for Magic cards again, now that would be nice

Regarding EX cards, there's nothing written on them about limiting them to one per deck so this rule from rulebook applies [1] : When you are building a deck, you can have only 4 copies of a card with the same name in it, except for basic Energy cards