https://bugs.winehq.org/show_bug.cgi?id=43775
--- Comment #27 from themainliner themainliner@hotmail.com --- Thanks Dox and Amosar! TotS AppDB page How-to updated!
I created a fresh 64-bit wineprefix, no dll overrides, set to Windows 7 and experimented. I found I could play with the 64-bit client with DX11 with only one step:
Copy /media/Games/Heroes of the Storm/Support64/d3dcompiler_47.dll to /media/Games/Heroes of the Storm/Versions/Base63635.
No dll override in winecfg and no winetricks d3dcompiler_43...