Warren healed people by bleeding on them. They had to have a compatible blood type, though.
I hope he's Type O.
wow thats...totally disgusting unless he can package it and give it out safely...
lol ridiculous i thought it'd be something cool..
like healing with limitations maybe healing by touch when he's in angel form and maybe it severely weakening him depending on the severity of the illness that would keep him from doing it too often and he'd be like a real Angel it would balance out the dark angel stuff too making him more powerful but more vulnerable at the same time..eh but a story like that might require some creativity....maybe someone will change the story so he can externalize it somehow........