The description of the shrine says it is used for blood sacrifice of your defeated foes. I don't know if this is a bug or of I'm just doing something wrong, so I'm posting it regardless before I use the other bloods.
What happens is that when the blood is placed onto the sacrifice bowl it generates a scripted response that the diety is displeased with it and inflicts damage. The blood comes from a PC, defeated in pvp, and taken with the Blood Drain Syringe while they are subdued. From my understanding of it this is how it is supposed to work and I think I'm doing it correctly, so I'm not quite sure why the diety is displeased with the blood sacrifice it asks for.
Login: Sorcerous Tendencies
Character: Jessica Valerios
Oh ok, thank you for the explanation! I'll go ahead and sacrifice the rest of the blood then now and Kossuth can just deal with it!