https://bugs.winehq.org/show_bug.cgi?id=46416
--- Comment #5 from zurohki@gmail.com --- The patch fixes the crash for me, too. Played for a few hours and everything worked great.
I can see why Battle for Azeroth uses those performance-wrecking ground effects everywhere now. They aren't anywhere near as bad in DX12 and that's what the art team will be designing for.