well, this is a hard question..

i can only share my thoughts about it..

I guess you wanna do hell mf runs, and playing in a solo game and trying to reach the end bosses could be pretty hard, and time consuming.

as I play hardcore, i wanna do fast runs (like everyone I think) and not put myself into too much danger.

so I do Eldrith runs (the one above frigid highland wp)

why? his very easy to reach, he dies fast, and he is super uniqe, wich means he can drop, 95% of the items, not sure but it could be 100% also, anyone know this?.

on hell he is cold immune allways, he sometimes have fire immunity also.. (around 45-50%) and of 300 runs I have seen him lightning immune 1 time.

So best way to kill him fast is to kill him with a pure chain / lightning sorc..

i teleport so I see the first monsters.. then i go back, while my merc starts fightning them. and they are sitting ducks..

hope this helps..

yes, this could work very well with a lightning trap assa or a lightning javazon..

but I like the teleport thingy on sorcs, and I have a 75 lvl 2 lower res charges...