I think it looks really nice, but it is really laggy and hard to understand how to play/where you have to go

I think in terms of level design, it would've been better making a level only focusing on 1 mechanic that shows more clearly how betting works so the experience is smoother. 

The implementation of the theme here for me makes the game unforgiving in a non-exciting way.

I can see the effort put in every aspect: art, gameplay, theme and audio, this has potential. Kudos!

the game really cool but laggning a little

Controls

Move — A, D or ←, →

Jump — Space, W or ↑

Cast — 1 2 3 4 — Fireball, Shield, Blink, Fish

Charge — Hold 1 2 3 4 to charge

Mana bet — E

Pause — Esc

I'm sorry, this game looks amazing but I can't figure out how to play