Wow this was a very nice experience. I would just add to the choir that all the info in the beginning might be too overwhelming at first. I get that it's nice to have icons in every skills but I feel a written description would be better for me to understand. Maybe explaining each icon whenever it appears, and the initial battles at the beginning involving simpler attacks just to understand turn order and stuff.
Megaman is a good reference on this, it very slowly introduces each mechanic for the player while always throwing some challenges to make sure the player understand that specific mechanic.
Also I think I couldn't pick correctly a sky/ground in the base creation, maybe it was a bug or maybe I just didn't understand it?
But other than that this was great, very polished, and fun. Keep it up please!