emperor of darkness structure deck yugioh Return of the Monarchs SR01-EN026 card Deck yugioh emperor of darkness deck

Mathmech Diameter Mathmech Diameter Cyberse TunerEffect Once per turn, during the turn this card was Special Summoned, when your opponent activates a card or effect (Quick Effect): You can negate that effect

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Key Cards Vivi Ornitier The commander of the deck, Vivi Ornitier is what's going to do a lot of the heavy lifting

You can alleviate that risk by equipping Lightning Greaves first or having extra mana and a Counterspell in hand but that's a lot of work and a lot of mana for a pretty mediocre flipped planeswalker side

I understand that there are color variants of old vintage cards resulting from different print runs