Quote from GuardianTempestThe only Bloodletter I know is from Warhammer 40k, but generally it means "something that spills blood" (usually someone else's)
Then it's a bit redundant, methinks. Wouldn't be more efficient to say that "Sometimes, when he gets desperate, he willingly lets the demon take over him" ?
So since I've scraped my knee that makes me a bloodletter?!? Sweet
Also maybe if he lets the demon completely consume him he can never come back >_>