Quite a fun little excursion through Fauna's dungeon (dilemma)! I thought this was an interesting take on the classic progression formula, with your gorgeous art style to boot. Having different classes is a good concept to yield options for the player, which influences how they'll ultimately play.
In my opinion, the core RNG element is two-faced: on one hand, it relies on the outcome of the chaotic universe sampling a fun next ability for me to use and thus can be tricky to strategize around or get rerolls (which I would love to see more of a feature built around the way Fauna has it, to reduce some of that out-of-control flow), which means extra care has to be given to the player experience -- but on the other hand, it is a pretty unique experience that does have some strategy to it based on the class you play, drawing from the wonders of RPG elements and an interactive experience much in the way that tabletop games can often be; and I appreciate the huge potential this game has as a base demonstrator, as a result!
I think you could take this in many directions and ultimately flesh it out with all the content Fauna and us all could only imagine, since you have something meaningful here to iterate on! Would be curious to see if you do... thank you for submitting! 🙇♂️