Truly a great little game you got, at least for what was playable. The pixel art is great and the actual gameplay, while the controls may be placed weirdly, was pretty fresh from the norm. The story for what's here is interesting, you did a fairly good job at setting up a base plot for what'll go down in the future if you continue to develop this game.
One thing I would suggest is when adding magic spells into the slots, it would be nice to have some kind of MP cost near the slots when out of the menus. Since it's a bit hard to gauge the cost even with the MP up to the left of the screen. Possibly also make the UI a bit more visually prominent overall.
Some minor bugs I ran into included:
- It's fairly easy to walk out of bounds on most maps, nothing drastic at all, since you can easily get back in the way you went out.
- The Consecration Ground spell seems to not work as described, just doing huge damage once on enemies in the area of effect. Also the visual graphic used for it randomly stays on the floor it was cast on indefinitely, until changing areas.
- When closing the game with save data, reloading from the start menu seems to break the game which includes wonky animations, resets levels with 0 points, no recently acquired equipment/items, and so on. The only way I fixed it was going back to the crystal after all that happened and loading it, which corrected the entire issue.
All in all, I really enjoyed this fresh take on a semi-action rpg, reminiscent of the Mana series. With a little more polish, this could become something really great down the line. Nice job.