The way this Build works is that you'll buff with Bloodflame Blade as necessary in order to add more Bleeding build up to your Star Fist, which you will be dual wielding. Attacking repeatedly will not only increase your Attack Power thanks to Rotten Winged Sword Insignia, but also because you will eventually trigger Hemorrhage, triggering White Mask and Lord of Blood's Exultation, further boosting Attack Power.

Charged R2 attacks are very good with the Star Fist because they deal exceptional stance damage, and also count as two-hits, dealing incredible damage and building up Bleed faster than some other Fist R2s. Use them when you can.

Beast's Roar is there to give you a ranged option. This is a Dexterity-based Ash of War, meaning you will want to change your Affinity to Keen on your Star Fist to get the most out of it. This Ash of War has tremendous range and decent damage, allowing you to shore up the weakest aspect of Fist Weapons, range. Use this when you can't get close enough to an enemy to be effective, or if it's just easier to range them down.