A large percentage of cards that require a bloodline discipline (Obeah, Valeren, etc.), also have an effect that require an (inferior) “common” discipline. In VtES slang this is often called the outferior effect.
The following graph shows how many cards each discipline has and how many of those an outferior effect have:
The following graph shows which common disciplines are used for outferior effects:
It’s interesting to see that three disciplines (Animalism, Auspex and Presence) are used much more for the outferior effects than other (not counting Thaumaturgy, since that’s tightly bound to Visceratika). While others like Quietus, Celerity or Protean are rarely seen.
Some more facts on bloodline disciplines:
- Sanguinis is the only discipline that has no cards with an outferior effect.
- Visceratika is the only discipline that is tied to only one discipline, namely Thaumaturgy.
- Resurrection is the only card that requires not one of the common disciplines, but a bloodline discipline.
- Quietus is the only discipline not used for any outferior effect of a bloodline discipline.
Post Scriptum: I haven’t included Maleficia and Striga.