I have 34 in STR and DEX, so I can use his Greatshield, and for the C scaling in both for all of the Greatswords.
The 20 INT and FAI is for the requirements on the Greatswords.
I have 1459 VIT, I feel like that's enough.
The Dark Hand is for effects, to look corrupted.
I can fast roll with all the Greatswords if I use no shield.
No attunement because Artorias used no magic, aside from the dark chargy thingy that everyone poise wrecks him on that I can't really get.
And of course, humanity for the humanity scaling.