Get rid of Maniac / Gutfire / Fear the Grave, and maybe even Lich.

Remove them from the game entirely. More n more players stopped playing again....These cards are playing a large role in that. Your nerfs did nothing to stop Maniac/gutfire - these kinds of early game OTKs should not be allowed prior to turn 9+, strahd in serra/nissa feels acceptable. The others do not.