a glowy magic looking bit that really screams "spells and magic and stuff"?
like a gem in the staff head, or an aura, or glowy eyes or markings...
glyphs?
basically anything magic/glowing
right now you could remove the staff and no one could question it, the character itself doesnt entirely have that magical feel to it
but as we mostly just see the cape, that'll be difficult, s'why you need the magic glowing awesomeness, yo