It's called prohibition of pure healing and prot lines:
Healing, Protection, Restoration, Motivation, [insert all OP'd healing skills/attribute lines here].
it would just be cool to see 1 slotted heal per character from a list, and the rest can't be heals. would be a cool format and then maybe all the scythe sins and dagger dervs would head over there from RA...a boy can dream, right?