The book is more to represent you are using an incantation, not that the book is casting the spell. If you don't like it pretend it's not there.SPELLS!
Such as, non-item spells like in skyrim, you learn spells from books then you can cast them at any time.
Maybe the ability to make your own spells? Such as, Cursed Flame mixed with Crystal Storm, Extremely fast, inflicts the "Cursed Fire" debuff, but does less damage than cursed flames as a balance.
Farming for a slime staff takes too much luck to make it worth while...
Can't you suggest that to Red?I want a space ship mount that you can load up with ammo such as rockets and bullets and fight things in. The ship would have a health bar and when that is 0 you die and you would have to craft another one. You could repair it though. It would have to be costly because its gonna be pretty b.a.