Physical mage, challenge me to a solo duel!

So what if a mage can't learn offensive magic? Doesn't he know that the best offense is defense?
They wear the thickest armor and endure the most brutal beatings.
What? A duel between mages? Please wait a moment.
Fire immunity, golden skin, shadow entanglement, rock-solid armor, thorn aura, shield of light, vortex shield...
Come on! Face me head-on!