There will be superheroes, villains, equipment, and epic abilities brand new to Magic
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
Welcome to today's edition of the Daily Dose of Oath of the Gatewatch
Maybe hybrid mana causes problems in rules text, and they didn't want to make adjustments for a single digital-only card
Saying that, needing four cards is a bit of a stretch, even with Formidable Speaker providing redundancy