I don't see any shared abilities in the lusii... the only lusii that even HAVE "abilities" (unless we're talking about some Friendsim thing I don't know about) are Gl'bgolyb and the dragon, both of whom are psychic (+ dragon eye beams) - but neither of their trolls are. Maybe we can extrapolate that bicyclopes have concussive beams like Sollux does based on their eyes, but if that were true it's still an outlier case.

I really don't feel that there has to be any "deeper" explanation as to the trolls and lusii sharing blood colours. T