The Ancient Egyptian faith supported a concept referred to as "syncretism", the practice in which different beliefs, schools of thought, and tradition were merged together into an inclusive system. This was represented among Egyptian myth via the relationship between deities being expressed as composite entities ( e.g. the god Amun, and the god Ra becoming Amun-Ra; the god Horus, and the god Ra becoming Ra-Horakty ). This also allowed for a bridging of the differing faiths of different geographic origins.

So, I play with the idea of divine syncretism loosely in RP, by manifesting it as a fun "power" that he naturally possesses: that of omnipresence, wherein he is ( written as "believes himself STRONGLY to be" ) the core/only Set, the collective archetype of his "self"*. In general terms, whether he's CRAU or not, he might get a little deja vu if he's run into the character you're playing before. He won't actively recall them, to prevent any sort of clashing with game mechanics or settings, though. All experiences in PSLs/games feed into the core of his being, and gods do not experience time in a linear fashion, so he figures he's just not actively recalling a memory.

If you want to opt-out of the "CRAU lite" power, just comment below! It's meant to be a fun option, not to godmod or powergame.