Super fun runner. Loved the music and the general premise. I did kinda wish the wand could do more than just blast the chasing decay. Like shoot things out of my way etc…
If you keep working on it after the jam, I think some variation in the levels would be a fun thing to add. Like running through a castle, or a swamp, or something. Just to keep the game changing… but for a game jam game. Solid. Good fun.
Good luck with the jam!