pro tip:
Summon Necro can do the Ubers. Takes one point in Revive. Go resurrect some Urdars, that have crushing blow and they’ll beat the Ubers for you.
Also, max your corpse explosion. Once you have Enigma, your clear will be faster than that of the Sorceress… and you’re not gonna care for immunities, because one point into amplify damage reliably removes physical immunity… as opposed to the sorceress, where the infinity on your merc is not going to reliably remove immunities, because some monsters are too high level and it’s not going to work.
Also, the idea, that the Sorceress is the class, that can do anything is laughable. Freaking Pindleskin can give you a hard time when he ends up immune to your element and you’re gonna sit and wait on your merc to kill him…
not to mention Uniques and areas, where the monsters are consistently immune to your element.