Build tips:
Obtain lots of Havel's Greatshield and Dragon King Greataxes, so you don't need to repair mid battle. You might want to use the shield R2 (special buff that gives infinite poise) for R2 spamming (special area attack) of the Dragon King Greataxe.
Also if you are in a hurry you can use Iron Flesh in a similar way as Havel's Greatshield special buff.
Note that you CAN'T run with Havel's Greatshield equipped in place of the Dragon King Greataxe, it let you in Slow Walk range.
Used in this video:
https://youtu.be/DA3-UpQwy_k