I really like the idea of a berserker Guda who can slide between incarnations based on each singularity they went through. The earliest the singularity the weaker they are, but also the weaker their madness enhancement is. Something like:

Fuyuki!Guda: literally a normal-ass human. Presence concealment off the fucking roof since they embody “the everyday person” but that’s it. No special power, strenght barely superior to that of a regular human.

Orleans!Guda: light fire power (think “can emulate a lighter with the tip of their fingers”), constantly smells of smoke since everything was on fire at the time.

Rome!Guda: The best strategist/team manager. Has a sword and is good enough with it to best a human (though not a servant.) What training in Roma does to a mf.

Okeanos!Guda: The world always seem to shift when you’re near them, as if you were standing on a boat. Can use any sort of vehicle.

London!Guda: Breathes out smoke constantly. Has mild alchemy knowledge. May say very disturbing things without realizing it.

America!Guda: Mild medecine knowledge. Physically very fit. Loves people a lot. Loves people a lot. Loves people a lot. That is not as comforting as that sounds.

Camelot!Guda: Jerky/jumpy. A lot more prone to fight or flight reactions. When they get hurt, they don’t bleed; what comes out glows brightly instead, like light made liquid. Is ready to kill a god. From this point on it’s a lot harder to get through to them.

Babylonia!Guda: Fucking feral. Motivated by the desperation of those who are on the verge of losing everything. Their hands and feet leave black prints like ink on whatever they touch. Constantly about three steps away from complete panic and makes decisions based on that so good luck talking to them.

America!Guda: Unhinged and beastly. Once they’ve acquired a target they will be set on eliminating it, even if it costs them their own body. Unable to feel pain. A berserker, in the rawest sense of the term. This is the face of a person who walked into god’s realm fully expecting to die yet set on fighting until they’ve torn every single of their own nails trying to claw a way out.