Note: This spell first appeared in the Hellbound: The Blood War boxed set, and were designed for fiendish spellcasters. DMs must give specific permission for PCs to have access to these lower-planar dweomers.
Renewed ability can be cast only by creatures that already possess innate spell-like powers, such as fiends, tieflings, genasi, and some aasimar. When cast, renewed ability lets the priest "recharge" one of his spell-like powers that normally has a limit on how often it can be used in a given time period. A power can be renewed only if it's identical to the effects of any wizard or priest spell of 3rd level or less.
For example, a tiefling priest normally can use his innate darkness 15-foot radius power once per day. After casting renewed ability, the priest can use darkness 15-foot radius a second time that same day.
Notes: Restricted to priests with innate spell like abilities. Rare for planar priests and unlikely to be learned except by visiting the Outer Planes.