I was running along the Silver Road to meet a friend when I ran into a hostile enemy mage who nailed me hard with a fireball. I tried to retaliate, but I got stuck on a bridge and couldn't get past his 2 summons to get at him. He was higher level (Very Difficult), and he wound up killing me with fireballs, acid arrows, and something that stunned me. My reflex and will saves are very low, so mages can be trouble. I was unprepared for this one.
After respawning, I went back to the area where I had died. I used some glowing blue invisibility powder, and hunted him down. When I found him, I knocked him down and smacked him around a bit. When he ran, I drank a haste potion and chased him to finish the job off. Revenge is sweet in a PvP world

Use your head, change your tactics, or bring some friends along. I've been slapping mages silly. (and rogues, and fighters, and clerics....)
And the items aren't even remotely uber compared to NS3. I think it's more fun that way.