Possible spoilers ahead. There will be blood? i saw a drop or two but, you can't use an allusion like that as a title and not have much blood. I didn't even know they needed blood to make a weapon and i saw the last episode. Must be Sam who said it, because lately, when He talks, I cant hear him. His words are whispered or said so fast i cant make it out. A sword is needed from what I gather. Now they need crowleys blood, which they could have taken from him before they went after the alpha vamp. But they didnt, for god knows what reason, they didnt take crowleys blood and now they cant get to him, how convinient.
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