yugioh duel academy decks Trading Card Game Speed GX Duel Box Set [8 Complete Decks] : Toys & Games but Speed Duel cards can be used in the Yu Duel Academy (card) | Yu-Gi-Oh!

As proxy cards are made from actual cheaper bulk common Magic the Gathering cards, they will still have the same back as the normal cards

Mega Gardevoir ex Special Illustration Rare, 178/132 In my humble opinion, this Mega Gardevoir ex is the most beautiful card in the Mega Evolution set

Being able to sacrifice a creature in response to anything will always be a powerful effect

During your opponent's Main Phase (Quick Effect): You can detach 2 materials from this card (or just 1 material if all this card's materials are Xyz Monsters), then target 1 Attack Position monster your opponent controls or 1 monster in their GY

The best target for this is Blightsteel Colossus, which does enough infect damage to take any opponent out of the game