Afflict Vow - consequences when broken

[PK]

Originally Posted by Anders

Hmm... I also want it to be able to inflict things like blindness and sterility

Do so, then. Anything not involving damage -- Blindness, Terminally Ill, etc. -- is a simple case of using Affliction (Disadvantage) to force consequences+Mitigator upon the target for the duration of the geas. Sterility is a special case, since it's a feature and thus not normally available for Affliction. In this particular case, I'd say that throwing a custom +10% enhancement on Affliction would be balanced for "if you break the geas you become sterile."

(And anything involving damage is most easily modeled as Innate Attack with a supernatural Delay.)