In V20 (both Masquerade and Dark Ages) Vengeance of Samiel costs 3 blood points to use. In Masquerade all neonates may learn it. But can they use it if they can't spend 3 blood points per turn?
If they can't, moving it to level 6 in Dark Ages seems even more understandable, as one only needs to buy another dot of Generation Background, and if he doesn't have it at all, he can't use the power anyway.
Are there any other such "mistakes" in V20?