
GamesManipulator |

This is what I have come to so far by talking with someone else, but there are some others that argue against it. I want an OFFICIAL ruling, as I am trying to teach a new player.
Merciful Healer says you have to channel positive energy for the Archetype.
Whereas Versatile Channeler DOES NOT PREVENT you from channeling positive energy, but rather grants the choice (at a minor caster level penalty) to channel negative energy if needed for some reason.
While other limitations from each will make it more difficult for a Cleric to have both; it is currently able to be argued that there is at least one way to bring the 2 together.
Challenges to over come.
1) Merciful Healer must have a deity with the Healing Domain.
2) Versatile Channeler only available if BOTH the Cleric and deity are neutral (on the good/evil axis).
Solution:
Cleric (Merciful Healer) of Pharasma who is neither good nor evil, and later is granted (by the deity) the privilege of being a Versatile Channeler.