Dead god cleric ideas?

I'm trying to come up with abilities for a cleric subclass in a world where most gods are dead or dying, but i can't think of anything. Many of the ideas i think of overlap with death domain or don't feel like the powers of a cleric whose power comes from something that isnt there anymore. If i think of a theme for abilities i might be able to come up with something, but im drawing a blank. Please help me.

Maybe think about it less like death and more like forgetting or slowing, or something that captures the idea of a god losing its powers as people stop revering it.