Great game, I love puzzle games so I went the hard route and skipped the optional spell.
Great work at designing the puzzles, difficulty was just right for a GameJam. The music was fitting and well balanced for headphones. The artwork is very unique, but very fitting for a GameJam.
Using up the spells is a great way to limit the player, but having to restart the level because you missplaced a spell by a few pixels is a bit frustrating. It's not bad as the levels are short enought, but an undo would be great, or a way to move it for a few pixels around the origin after placing. The jump might feel a bit clunky as you can't controll yourself as soon as you leave the ground, but as I used this kind of jump in one of my first GameJam games it felt a bit nostalgic.
TLDR: Great game, controlls need some adjusting to, think twice before placing anything.