The Ghost King

[Wrana]

Yes, I see mostly 1 ghost/turn & no in weakish Dominion. I agree he's no blesser - I used it as a side effect of Rainbow.
As for sinergy - strong Dominion helps both for SC and ghost production; said ghosts can help him with stronger independents while he has no great equipment or with initial wars; he also produces them while researching/casting rituals; Rainbowing helps with research, diversification, blesses - and combat! He may be suboptimal, but he can be built to good effects which tie with each other well, as I see.
By the way, when I used him as SC in trial run, I used independents strength at 7 - he just needs a combination of equipment & existing Dominion which is reachable when he is asleep. He just isn't viable awake from my point of view, and making him imprisoned defeats his purpose - though he isn't so much more costly than Master Lich, by the way...