There more than likely will only be cure and curaga for conj. So looks like everyone conj will have to rank up thm for a second healing spell I am suspecting. However, they would only have to rank up thm to level 4 for sacrifice and then it automatically scales to your conj level. So that is kind of nice. However for MP conservation not sure what to do. Maybe wait for more incoming dmg before a heal? I have yet to find a situation in this game where I need to conserve MP with the lower tier cures.