Erudites make very good Necros. Super high starting INT + Mantle of Souls give them an insane Mana pool compared to Iksars. That means they can stack HP like crazy to have a huge HP reserve for liching. They aren't as efficient over time, but for something like breaking a hard camp an Erudite is actually better than an Iksar. Why? Because you will have a larger HP and Mana pool to play with. That being said, this advantage is really only meaningful through Kunark. With high end Velious gear the Erudite INT advantage basically disappears.
I wrote more about this here:
https://www.project1999.com/forums/s...d.php?t=110930