I have an idea of adding an upgrade that would allow user to upgrade spells so (range, duration etc) with each kill with a spell on wand that has the upgrade. Also i would suggest making a config option where we could set if it would be possible to add this upgrade on a wand that has got a spell upgrading upgrade (if it is stackable with other spell upgrades) or values such as maximum bonus provided and so

Not sure what this meant, sorry. Happy to discuss suggestions in the discord server in more details.