Also, the Mulcharmy archetype being Maxx "C" at home isn't as bad as you'd think it would be. They at least have the decency to demand an empty board (meaning you can't build a board then hit your opponent with "C") and crunch your hand down based on how many cards your opponent controls. Two of them are not very good, but Fuwalos summons from two of the most common summon locations in the game, so it's basically just a slightly worse "C".

That being said, there are decks that are minimally affected by Fuwalos. There was a paradigm shift around 2022 where Konami started giving a shit about the Main Deck, Ritual Monsters, Trap Cards, Equip Cards, and even Flip Monsters, so you can run something like Kashtira Regenesis and just not give a damn about this card existing at all, or a Mitsurugi variant where you'll maybe give your opponent one or two draws.