The way this Build works is that you'll buff with Golden Vow and then you'll use your L1 combos to stun lock most enemies, building up your Attack Power because of Millicent's Prosthesis and Winged Sword Insignia. You can use Bloodhound's Step to dodge easily, or you can use Quickstep if you find it difficult to use Bloodhound's Step.

Because you have high Poise from your Armor setup, and you because you'll be using the Dragoncrest Greatshield Talisman, you can trade damage without being interrupted quite often, and you'll have very good protection. Golden Vow also provides you with some as well, so you can finish off your combos uninterrupted.

You can use Blessing of the Erdtree and Flame, Grant Me Strength to buff healing and damage for Boss fights. And you can use Blade of Death when you need a ranged option, because melee wouldn't work or work well. Parry is used when enemies cannot be stunlocked with repeated attacks, or when you cannot swing through attacks easily.

(After patch 1.07, the duration of Blade of Death is increased. You can add Black Blade incantation to this build so you can dual stack buffs and make the build more effective.)