The chaos and dark infusions might get better at a higher upgrade level, but at +7, my raw weapon does more damage to everything. The damage is disappointing so I've gone back to my raw astora straight sword.
How to get Sepulchure's DoomKnight Armorģ. I'm just about halfway through the game with my pyromancer and just got the ability to use Chaos and Dark infusions. Beside the armor, you could get the entire set with it's full equipments of Helm, Cape, and also Weapons that deals 25% more damage to Dragons and Humans along the quests to get the Armor by talking to Ancient Doomknight's Quest on /join shadowvaultĢ.
This armor is like the low version of Archfiend Doomlord Armor, However Arch Doomknight Armor excells in dealing damage to Dragons and Humans with 30% more damage to 'em.