Brought back memories of a game that I spent many hours playing when I was in high school! :D Anyway, some feedback.
Definitely has potential as a POC, and I can tell you put a lot of thought into the various attributes, items, buffs, attack types, etc. The flip side of the complexity (which is something I like) is that it could be overwhelming for new players at first. When you take this to the next level, I'd suggest adding in-game hints or a player manual or both.
In terms of the UI arrangement, the home page looks very busy with both player stats/attributes, shop, and moves bar at the bottom. Maybe have a collapse/expand option or a different shop button to open/close.
Action bar: it seems to have unlimited slots? Maybe consider limiting the bar to a fixed number of moves/actions. OR... One thing I found confusing initially with the action bar was a lack of clear delineation between different types of actions. I eventually figured it out, but for the first 2 minutes I was wondering why I couldn't use my "spell" on an enemy.
I think I might've run into you whilst completing a dungeon; having a team mate definitely made it more fun, especially for a low level newbie like me. :D