Mobs Casting: Torbas Acid Blast
 

Two mobs that I know off the bat that cast this are Maid Issis, Dark Ritualists, and Lasna Cheroon in Mistmoore. So... necromancers cast this spell. It's not Classic, though. It's actually a Velious Spell.

I think Torbas Acid Blast needs to be taken out of necromancer spell sets. :)

+1 all lvl 34 necros in any zone are casting this spell thats over par with wizards at same level. It is a velious spell not classic...!

edit: Just died again due to mob chain casting this, a lvl 34 nuking a lvl 50 for 1900 dmg in the course of a minute... woot!