Main menu is clean and lovely to go through. Glossary is a nice touch. Messed around with the mouse a bit, when you click away from the buttons, the buttons lose focus, you can use an invisible layer for this to block inputs on the background.
Combat and movement feels responsive, and there are a good variation of characters. The fighter class seems to have harsher combat timing in relation to others, resulting in button mashing. My instinct says the human special is more useful than the Elf's, but I didn't manage to test with another player. This means I can't comment on defensive gameplay either unfortunately. When moving towards the enemy, the special grows, is this intended?
Aether reminds me of Infinite Azure from Tekken 7. Would be a nice touch, if you was able to move infinitely in both directions. Water footstep sounds would be good as well. The rocks on that stage feel out of place. The forest levels look great, but are slightly laggy. I have no complaints about the other stages.
The music and sound effects overall are nice to listen to.