Has anyone ever thought of Spells in a way that isn't similar to bombs and guns? I doubt it, all the suggestions of anything related to the arcane in this game are far too similar to already existing items. I will probably think of more ways to make spells different as time goes by, but this is a rough suggestion of what I have been thinking.
Here are a couple of ideas I spent a while thinking about, starting with some things relating to spells.
Spells can be used in conjunction with other weapons, taking up one weapon slot.