Originally Posted by Linio
This is what I meant to say in my post, and I don't really see how that's not an issue.
Best case scenario be like : Oh yeah, that's the moment I could have used that one tiny spell I never select in combats because it's too situational, well no matter, let's go on. Basically a lot of spell will go unused, and I'm thinking it even get worse when you actually can have "all the spells".

If these kinds of spells exist, then the game is poorly designed regardless.

Having lots of spells that are only useful in just the right situation creates a lot of clutter.