You Have My Sword, and My Bow, and My Axe - The Fellowship Rises Again

That's what I like about necromancers, if you invite one to help, they bring a lot of people (back) to help.

I'ma add onto this. Hero dies, necromancer party member raises his corpse, causing his soul to hang around as a ghost. Ghost hero has trouble doing much on account of being incorporeal, mainly existing to facepalm at his zombie's clumsiness.