Heya! Thank you so much for playing the game and your lovely feedback <3! We overscoped way too much, so we weren't able to make the units mechanically different besides quickly dialing up and down the HP, speed and damage, even though we did have concepts for it. Frits originally had a free drawing system set up, but having the system recognize more than 2 symbols became too difficult, which is why we switched to a grid. It's really nice to hear that what we had in mind, is also what people playing the game were envisioning :)