"Limiting Mask Change makes Heroes unviable"
good, most people don't want it viable to begin with. Limiting this card wouldn't even destroy this deck completely, just push it out of the meta into rogue decks.
I never said it makes Heroes unviable. I said that it affects other MASKED Heroes. Anki isn't the only Masked Hero in the game, limiting Mask Change also kills other Masked Heroes.
Knowing Japan's obsession with Heroes, Konami wouldn't want to outright 🔥 Masked Heroes like that.