Hi there, posting a video on how to solo abyss. I have seen a post already with a guy doing similar but you don't need gjallarhorn for it. In my opinion the black hammer is crucial tho. This can be done the same as titan, and also as hunter too I have seen / done it. Hunter tho can also stealth the whole way there with no problems, and even avoid the ogre with stealth + run past the bridge when it forms so imo hunter is easiest.