Ok, I bought the game. Keyboard controls are still C, X, Z and Space, but you can also use enter or the left mouse button for clicking through dialog and the enter key to start conversations.
My keyboard has the Z somewhere else then C and X (where I can't reach it with my left hand, without moving it away from C and X, while moving the character with the arrowkeys using my right hand), so it's frustrating not to be able to rebind them. In the end, I never used Z (ungrab the rune = it stays where it was), because I would have had to look away from the screen to refind the main buttons C (activate spell) and X (grab a rune -to swap it with another rune somewhere on the board using X again), which would have meant to die even more often then I already did, because I couldn't have doged enemy attacks or simply ran away, because the battlefield requires you to navigate (they aren't just a big field, your movement is restricted due to how each battlefield is shaped, with dead-ends and such).
*sigh* I'm bad at explaining.
Post edited July 07, 2019 by FlockeSchnee