User blog comment:Calvincambridge30/Versus/@comment-87.116.252.48-20161218140305/@comment-3045936-20161219042859

Slight corrections.

Jesse's Power is innate but is stronger when Lucifer is free. Said by Castiel. Castiel said a mature cambion with Lucifer risen could destroy the Host of Heaven.

Cain's power was so great due to the mark itself. As the Mark corrupted him beyond what Dean called even himself having greater than just Demon Juice when he was a Demon. The mark keeps the holder alive, but corruptions them by turning them more into more of what they already are. The part of turning them more into more of what they already are, is taken from what God said to Lucifer. "No son, the Mark didn't change you just made you more of what you already were." The rest is from character comments and how the mark corrupts.