Five Mega Evolution Pokemon ex headline the set: Mega Lucario ex, Mega Venusaur ex, Mega Absol ex, Mega Mawile ex, and Mega Camerupt ex
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Despite a complete lack of printed devil support, theres enough Devils that are good in their own right that a casual, sixty-card deck could pull this off with cards like Vexing Devil, Rakdos Cackler, and Hellrider could work fine, and a combination of Flayer of the Hatebound and Patriarchs Bidding or any similar spell should immediately kill any opponent
A Promise Fulfilled - Light Up The Stage is a Sorcery card that allows players to exile the top two cards of their library with the option to play those cards through the end of their turn
C Common Effect Veiler X LIGHT Level 1 [ SpellcasterTunerEffect ] ATK 0 DEF 0 During your opponent's Main Phase (Quick Effect): You can send this card from your hand to the GY, then target 1 Effect Monster your opponent controls