remove healer behavior that causes them to runaway when attacked.
remove healer and petard melee attack entirely, and have healers stand behind units healing when attack moving.
Attack moving with unction missionaries should cause them to stick close to backline units. Warchiefs, daimyo and shogun should also have a similar passive attack move stance as an option.
give griots, warrior priests and brahmin a choice between heal and attack stance which changes their default attack move behavior.
give priestess an option between heal and convert stance. convert stance causes them to attempt to convert the highest value target in range automatically.