Hotkeys for building units and for abilities
I have some issues with the way the hotkeys work:
when choosing units in the deck before the game starts, the positions of the cards changes the hotkey in the game for building them. So unless you have the same units in the same spot (i.e. X unit in first position in the deck, Y unit in second position, ...) the hotkeys shuffle around. The way I prepare for a game is usually "I guess I need this unit, I probably don't need this one. Yeah let's try this", I don't really see the point of having these inconsistencies. Unless it was what you're aiming for, I feel like I always associated specific units with hotkeys (i.e. I know that pressing 'A' is always making me a Shadow, and I don't have to waste time to check in the toolbar).
I had one instance where the specific spell of a unit had an hotkey change, and I believe this came down to the same reason.
I apologize if I got this wrong, or if I'm the only one actually complaining about this.