We've gone from polymerization being this unknown, legendary, one-of-a-kind card that only one, if not a few people can use well, if at all, to Monster Reborn, and now Equip Spells in general, of all things.
I'm wondering how they'd react to seeing a well-made Noble Knight or Vylon Deck, or anything that uses monsters that has them function like equip cards, such as Felgrand or Ignoble.