Notes from author
If your health drops, equip crown of dusk for stronger WOGs.
If your DMB runs out, switch to darkmoon tracer.
Can switch to Wolf Ring if you need the poise to R1 spam your buffed falchion even more.
Can also switch to Red Tearstone Ring at low health.
Can also switch to Ring of the Sun's Firstborn for stronger WOGs, but not stronger DMB.
Can also switch to hornet ring, but falchion / Gold Tracer critical damage is not that great.
If you want to experiment, equip havels ring, wear heavier armor and use heavier weapons like the Claymore or Zweihander (can twohand it with 16 strength).
Unfortunately, cannot switch to the heavier Quelaag Fury Sword (for more R1 spams ofc), unless you use Havels Ring or change your stats (increase stamina and your attunement / strength / ...)
Build could be optimized if you remove 1 attunement slot (Black Flame) or fill it with a 2nd WOG. Also, could reduce the strength from 16 if you don't wish to ever use the Claymore or similar weapons. Increase vitality instead.