Installed in the last week. Ran into an issue starting the game on EndeavourOS using Lutris without steam but quickly resolved it by deleting some of the game files so it forced a redownload.
The graphics looked fine to me using the AMD 7900 XTX in all of the menus but when I got into a match most UI elements and cards were blacked out. Switching from "ultra" to any other graphic preset fixed the colors for me.
Ok, there are 3 versions you can choose when you install, the "latest modern" worked like a charm here, the first one in the list. The other two fail to me as well.
E que porra é essa de bolha.forum aí? De onde vcs vieram?
Create a directory where you want the MTGA wine prefix to live (I use /home/my_username/Games/mtg/)
In Lutris, press + to add a new game, and set the following:
Name: "Magic The Gathering Arena"
Runner: Wine
Click Game Options, set the following:
Executable: /path/to/MTGAInstaller.exe
Wine prefix: /path/to/your/wine/prefix/location/ (As I mentioned above, I use /home/my_username/Games/mtg/)
Click Save
Optional, if the game art doesn't auto-populate:
Click Lutris under "Sources" on the left -> Community Installers
Search for "magic arena", and wait for results to populate (the search downloads the art)
Exit the community installer section
Click Play in Lutris
From here it should set up the Wine prefix and install the game. Once that is done then quit the game (if it auto-launches).
Set Lutris to the game's launch executable: right-click on the MTGA icon -> Configure -> Game Options
Executable: /installed/path/to/MTGALauncher.exe (for me it is /home/my_username/Games/mtg/drive_c/Program Files/Wizards of the Coast/MTGA/MTGALauncher/MTGALauncher.exe)
Click Save and you should be good to go!
Good luck! If the game doesn't work following these instructions then you can try running with different versions of Wine (I'm using lutris-GE-Proton8-x86_64). And if it still doesn't work then I'd expect your issue might be with your GPU drivers.