Worldbuilding

I don't know how to articulate this properly but I don't like when magic feels too much like its own thing separate from everything else or when it feels too much like a fully itemized system. It makes it feel like it's this entirely self-contained model bolted onto an otherwise normal world. This is something that's really more in games than anywhere else for very obvious reasons, but when magic is fairly common and magic is in the form of discrete known spells that always work the exact same way every time no matter who's doing it makes it feel really artificial and gamey in the same way that character levels being known in-universe would be.

I really like when you have things like every fireball or magic missile or whatever being slightly different the way that every handicraft is slightly different, even if it's the same "spell". I really like when there are outside forces that influence magic, like the planets are aligned correctly so everyone's magic is supercharged but unstable, or you're in a sacred grove so your spells do xyz things different, stuff like like that. Things that make magic feel like it's some supernatural force that you're tapping into instead of pressing a button .