Notes from author
Either sorcerer or Cleric work as a start, Sorcerer is technically better min-maxing for the final build, but cleric is better for getting it online quickly. Therefore I will assume you are a cleric.
1)Pick Master key
2)Go through undead asylum normally
3)Upon arriving at Firelink, grab all the consumable souls around, the morning star, talisman, homeward bones, etc.
3.5) Thorolund talisman offers better spell power than Talisman or Canvas Talisman at 26 or so faith and below, but this doesn't mean much given Karmic Justice won't scale off of our talisman
4)Go down the elevator, grab the soul of to the right, the estoc and the transient curse
4.5)If you want, you can use a transient curse and stunlock the ghosts with the mace, nabbing the early firekeeper soul, but this can be risky as the ghosts are utterly awful to fight at any level, but especially early on. I wouldn't recommend it this early.
5)Use the master key and enter the valley of drakes.
5.5) First off, DO NOT EVEN TRY to grab the bandit set and red tearstone ring, it's definitely possible but the drakes are a pain to deal with in every conceivable way. Now, if you want, you can grab the soul, Sword and shield from the undead dragon but remember to dodge INTO the claw swipe (towards the wooden bridge) when it wakes up.
6)Go up the elevator, light and rest at the bonfire
7)Grab the grass crest shield, kill or run away from the Black knight, and make your way up to Andre. Killing the crystal lizard and grabbing the archer set are both optional.
8)Ignore the titanite demon, ignore Andre, light and rest at the undead parish bonfire
9)Prompt swap dupe some souls and use them to buy the crest of Artorias, as well as either upgrading the Astora straight sword if you killed the lizard or just 9 titanite shards and upgrade the mace.
10)Run down and grab the stone set behind Alveena
11)kill the hydra and golems
12) quit to reload area
13) kill gold golem
14) say yes to Dusk
15) To be contin-