How about some robes that don't look like they were designed for Gandalf in the 70's?
In regards to summoning I'd rather not see these crazy summons, I think that things kinda spiral out of control when you can turn into dragons etc.
I mean I don't care about realism and all that it's not about that, but it just kinda makes villains and such feel less threatening imo.
Like you're fighting this knight who's supposed to be really strong but then you turn into or summon a dragon + your party members and you just gang up on him, it sorta feels silly to me thematically.
For example if in Warcraft 3, WoW or whatever you had Finger of Death like Archimonde and could insta kill everything at will.
It'd sorta detract from the threat of Archimonde and make him feel less threatening.