Notes from author
Note : The following stuff on this build is what I actually have on my character. You can change it for whatever you want as long as you still keep the FAP ring which can't be removed unless you're making some NG+. I don't mean there's no stated gears of course. It's just you have the choice within a bunch of a lot of stated gears. Not the same thing!
This build is actually one of my most played due to its incredible versatility when it's about to use so much different weapons or armor stuffs on the same character. Of course this one has its own limits too (Can't withstand full heavy armors set without losing fast roll or can't cast any spell whatever it can be. It may not be true on this last point since you can switch Havel's ring for some random Seance ring and then using some pyromancy spell but that sort of thing is kinda inappropriate on this build if you know what I mean) not even to mention the fact that it will require so much time to farm necessary components in order to upgrade stuff into some (nearly) max lvl (Those are just a pain in the ass when it's about farming).
On this build, you can theorically equip all the stuff in game except for magic stuff, latest heavy weapons (Won't be enough for some Havel's shield but can still be able to bear dragon weapons two-handed anyway) or stuff requiring faith/intelligence stat to equip (Who said the Abyss Greatsword?) so just keep your own imagination to combine all different stuffs in order to have the best improvements which suit you. About the 50 in Endurance, it was meant to have a very decent range about the arsenal/armory (It will usually be about some medium armor stuff) on the character without losing the fast roll thanks to the FAP and havel's ring. If you wanna ask me the why about this build and its goal, I'd like to say it was mainly created to be used into fight clubs where I can totally change my playstyle between two rounds (Using the same preconceived build kinda annoys me over time).