63x88mm card sleeves Dragon Shield - Dual Matte Give your cards a mysterious aura and enhance your gaming experience with the matte dual sleeves Dragon Shield card sleeves: Clear

My best guess was that seven is one of the more common numbers for card games where you draw cards and perhaps it won out because it was what Richard Garfield thought people would assume to draw

Gren Maju Da Eiza , Golden Homunculus , and Helios The Primordial Sun all gain ATK and DEF according to the number of cards banished

double this card's ATK until the end of your opponent's turn, also, any battle damage it inflicts to your opponent this turn is halved

C Common The 13th Grave X DARK Level 3 [ ZombieNormal ] ATK 1200 DEF 900 A zombie that suddenly appeared from plot #13 - an empty grave

There will be superheroes, villains, equipment, and epic abilities brand new to Magic

Saying that, needing four cards is a bit of a stretch, even with Formidable Speaker providing redundancy