The game needs more counter cards vs spellbook decks. They have everything. Return set spell/trap. Banishing enemy controlled card. Putting a monster facedown (including their own when they get f.e. lava golemned). Mill their deck, search, special summon. They have cards that dont target so you cant properly respond to them. Most such things are ready every turn till the eventual board flood. You start to see spellbooks more and more. Loads in the top of wcs 2018. Already loads at 4k life and especially at 5k life now. Its among the easier decks with roughly the same sequences on top of all of this. Sylvans seem way easier to defeat. You either otk spellbooks right from the start or lose it seems. Which is ridiculous.