[quote=EliteCommander]
I would think it would be difficult to use blood-based magic without blood.
[/quote]
Fallen had an explanation for this as well.

I should really have copied that conversation from the IRC.

Basically she said it was possible for the Athings, I forgot as I'm tired to inhabit bone. Plus that is part of the whole cursed by... (or blessed) Duuri. I think she said. To clarify some things.

-He does feel pain as if he has flesh and bone etc. Stab him through the chest you won't kill him, but he'll go down. 
-He isn't going to the sanest person so that too is a disadvantage.
-As is the fact he is out of his own time and still can't remember the war (Or frustratingly, his own death).
-He doesn't know why he was cursed(Being in a Coffin trapped for hundreds of years pretty much makes you think you've been cursed)
-You can literally [i]pull[/i] him to pieces and he excruciatingly has to live through it.
-You can still get a hammer if you smash all the bones to pieces.
-Me and Fallen discussed that if he over used Magic he would start to fall apart, as it would start to fall from whatever sorcery was holding him together(Fallen suggest this be in the form of the bones turning to dust and then [i]slowly[/i] regenerating once I rest).
-Don't you think it would be incredibly extraneous on him mentally that he sometimes remembers using all this magic but he basically has to start over again?
-If using Shadow Magic requires binding with the Nox will this not be harder for him since he is technically dead?

Just pointing out most of his flaws.