[Dalin]

The reconsecration idea reminds me of my fascination with "forgotten" gods whose powers have faded to almost nothing. This could happen after a conquest when a new god with a similar portfolio replaces the old one. Or after a calamity destroys a particular deity's people (a god of Atlantis, for example). Or perhaps a god just becomes unpopular (perhaps rightfully so) and is eventually replaced with more popular upstarts.

Finding an artifact to the old god could be an interesting story in a campaign. Perhaps the item can be reconsecrated to a new god. Or, it might awaken the old god, who may or may not be pleased (but may not have the power to directly intervene, even with servants). I've used elements of this in a number of campaigns in the past.