actually, the cleric makes a fine necromancer (until something better comes out). He's got both the right spells and the right moves. Check this out:
cleric, human (shadow walk is funny, but also summon monster for golems and other slaves), evil
advanced moves 2-5
chosen one (animate dead), serenity, scales of life and death, empower
advanced moves 6-10
apotheosis (bones or whatever), providence, greater empower, reaper.
significant spells
1 cause fear, speak with dead
2 animate dead (with chosen one)
3 darkness, resurrection
5 contagion, trap soul
7 harm, sever, mark of death
9 consume unlife, plague
Also, multiclass dabbler gives you access to a world of things, there's a lot of necromancer-flavourable moves among other classes.