Honestly, for White Mages I would prefer more means to help conserve or regain MP along with providing important utility. Scholars never seem to worry about MP and have been dwarfing White Mages in every aspect. As such, here are my Skill wish list.

Stone 3 with a twist. Rather than just be another damage skill, have it provide a minor stone skin on the user when cast. Nothing major, just something as a means to add some personal mitigation while helping during a DPS crunch.

Osmosis: White mages need a quick way for MP recovery. Relying on saint's shroud in a long fight is never good and having to throw out heavy heals and raises can drain you fast. Could make it water based with a simple dmg to mp formula.

Reraise: The ultimate back up that can help people learning the ropes or just to give someone a second chance in case of the worse. Make it out of combat only to prevent abuse, and maybe even a moderate cooldown so the user must choose who to give the reraise to.