Does anyone have any suggestions for homebrewing or customizing a Patron system for something like a forgotten god? Imagine a deity who, at one point, had the power to support a body of Clerics but now is somehow distant, or dead, or otherwise un-worshiped such that they can only grant the kinds of blessing more typical of a Warlock Patron. Obviously you can do something like, "Well use the Celestial as a Good Cleric and the Fiend for an Evil one!" but the range of Cleric gods and domains rather outstrips the range of Warlock Patrons. How would you recommend either converting a Cleric type to a Patron or building one from the ground up?