Fast Healing (Su)
Source: Advanced Class Guide, p. 79
A white mage can spend 1 point from her arcane reservoir and expend a spell slot of at least 2nd level to grant her allies the fast healing ability. Allies within 30 feet gain fast healing (Bestiary 300) equal to 1/2 the level of the spell slot expended. This effect lasts for a number of rounds equal to the arcanist’s Charisma modifier (minimum 1).