I posted what I liked about your game in the comments but as for specific feedback I think it would be good to have all the information for the player in one place. When I am attacking I am looking where I want to attack. When it is on cool down was not obvious to me until I saw it up the top. This gave me the impression that it was not working. Once I saw the timer I understood it but I had to keep looking away from the enemies I was trying to kite. If you had the information on the mouse cursor like it was red on cooldown then slowly turned green when I could attack again I think it would feel more fluid. I had similar feedback in another jam I did with https://n00begon.itch.io/time-stream where you had to keep looking at the top of the screen rather than at the enemies. I think all the pieces are there you just need to make sure all the information is easy to access for the player and it will feel better. Like your screenshake and slow motion make them feel badass now you just need to make it more obvious when you can move so it feels more fluid.
Viewing post in Design Discussion: What do you SPECIFICALLY want feedback on?
Thanks for taking the time to comment ! I tried your game and I definitely see what you mean about making the information easy to access. I'll keep that in mind for my next games. As for the mouse color, that would have been a good addition in the context of the jam (not really possible for a mobile game but I can add something on the player, or some visual feedback if you try attacking when it's not available).