I'm so glad you're so deeply immersed in the gameplay, buddy! I appreciate it.
Yeah, I also like the idea of upgrading equipment like they do in Terraria with trinkets (as I remember), so I decided to add that feature to my game.
I need to improve spells, balance the costs, and make the cost more obvious. Initially, they were intended to have features like new damage types (fire to help with Ice shield). A slow to help with Hunt completion (by the way, isn't the "minigame" of catching the Orb in Hunt mode too annoying?). For now, spells make the most sense in raids, I think. I want to add new spells with different damage types, AoE effects, and more crowd control effects (to stun or freeze units in raids).