Are the Nightwretch and Deathripper bone jacks ok then?
Edit:
Ok, slight expansion on what I just asked. There are the bone jacks and they are nicknamed bone chickens for a reason. But there are the old smaller metal ones and the new plastic ones. Here is a comparison shot with defilers:
Also some guy converted them to look less like chickens:
The reason I'm trying to clarify is that there are Cryx casters who have little to no use for an arc node and are still very good but most of the casters will be wanting an arc node or two to control the battlefield and help them stay away from the big threatening things.
If you don't like all the arc nodes then I think the casters you should be look at are Mortenebra, Terminus, Goreshade1 or Goreshade2. Those really have no need of an arc node. Asphyxious2, Skarre1 and Skarre2 have a little need for one but it will restrict them slightly if you don't take them.
As for other base models: Bane Thralls/Knights, Satyxis Raiders, Mechanithralls (with necrosurgeon) for units. Seether, Slayer, Reaper for the heavy warjacks. Stalkers for the lights. Solos include Bane Lord Tartarus, Satyxis Raider Captain, Gorman Di Wulfe, Warwitch Siren and Skarlock Thrall.