Last night I met Miss Sarva for the first time. I was playing my main Soondar (18 ranger/2 bard/6 epic), and it actually went fairly well. I shot Sarva from the doorway, that got her attention and that of couple underlings. My hireling Andaro died almost immediately despite all Resists I put on him; I raised him but he died again, and I did not bother with him any more. Then it was a matter of hosing Sarva with arrows, healing myself, and periodically playing Fascinate song to neutralize her flunkies. I did die once quite suddenly (rolled a 1 against her dragon breath?), but turned out the shrine atop the stairs was just barely within reach. (Note for the future: always fight Sarva in the doorway!) I rezzed at the shrine and finished her off without much trouble.
But that's a ranger. Rangers have evasion. A non-evasion toon would be like poor Andaro -- sitting duck even with all resistance/absorption items he could pile up. Is there a way for such characters to defeat Sarva? Besides "piking in the back while rangers and rogues do the job"?
 Soondar was wearing EN Ring of Djinn, Acid Resistance 40 necklace, and a 33% Fire Absorption trinket. Not sure if any of it actually did squat.