This game has some interesting concepts. The music is super cool, but a bit loud. I can imagine a couple ways this game could be further developed: maybe like a puzzle platformer of sorts? Or maybe like a combat-focused, "protect-your-necromancer" while fending off waves of enemies?
Amongst the other things I enjoyed, the death animation for the skeletons is great, and so is the design of the necromancer. It's a good start! I wish there was more content but hey, game jams, right?