Yes there isYes there is, and I'm amazed on how easy that is. You can do all installation, download and configuration with flatpack (a similar installer like Ubuntu snaps).
This is the tutorial for Ubuntu:
sudo add-apt-repository ppa:alexlarsson/flatpak
sudo apt-get update
sudo apt install --install-recommends flatpak
flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
flatpak remote-add --if-not-exists winepak https://dl.winepak.org/repo/winepak.flatpakrepo
flatpak install winepak com.blizzard.StarCraft2
You can also do the same following this guide for other distros.
Seat back relax, that's it. After it finishes:
flatpak run com.blizzard.StarCraft2