I'm thinking of adding in a sort of "leveling"system, where most humans could survive a fireball with a few burns say, mabye getting thrown around a bit, but only a rare few had where "powerful enough" to do as you say, where magic simply cannot touch them.
Thank you for the feedback. As well, I was thinking of making the MC, say, the child of a human and a spirit(beings entirely of magic), so that both "halfes" are constantly rejecting each other, slowly killing him/her.
So, here's my thoughts.
On the world I am invisioning, the first living beings were spirits(elementals, wisps, djnn, the whole shibang). Humans were the final race to appear, (haven't yet decided how, more on that later) and had one unique, defining trait. Of every single other lifeform, they...