>>535526803
This kills the deck, since a 9pp refill means no Kuon OTK.
Honestly just change Satan, it's not like any other deck can use Astaroth, it's a super dead draw if say, Dragon or Haven has Satan active. Switch the card out for pic related or another of the old Cocytus tokens. I honestly don't think it's broken but 'control decks can't exist past t10' is ass design.
They won't change anything though. They balance off playrate. Sword is insanely busted and keeps even Rune at a 50% winrate tops, so spellboost usage rates aren't egregious.
Historically, this is how 2 deck metas escaped nerfs in previous iterations of Shadowverse, the two big decks keep each other down just enough they never really cross the nerf threshold, so the devs just shrug and let everybody else eat shit since nothing's technically broken.