In my game most villages will have access to a spell caster. These spell casters will often be the local witch or wiseman/woman.
I know there is a Witch RM2 profession that works with RMC but for me I have found that the Sorcerer hybrid is the perfect fit for this role.
The sorcerer has access to the closed healing lists which fits with the idea of turning to the wise woman when there little hope of normal healing.
The sorcerer also has access to their own base lists which are great for putting ‘curses’ on people in the form of inducing neuroses.