The Occult upgrade path is a form of weapon ascension. Andre of Astora gains the ability to upgrade weapons down its path after receiving the Dark Ember. Creation of an Occult weapon requires a +5 Divine weapon (which in turn requires a standard weapon +5) and a White Titanite Chunk. Upgrading an Occult weapon further requires White Titanite Chunks to +4, and a White Titanite Slab to upgrade to +5.
As a branch from the Divine upgrade path, Occult replaces the Divine auxiliary effect with Occult. Although it increases a weapon's scaling with Faith, it also decreases the Magic base damage, resulting in dealing less Magic damage overall. Additionally, it increases the base Physical damage without affecting Strength or Dexterity scaling. Ultimately, compared to the Divine upgrade path an Occult weapon will deal slightly more equalized damage between Physical and Magic.
Like Divine weapons, Occult weapons cannot be augmented. With large investments in Strength, Dexterity and Faith, a standard weapon enchanted with Sunlight Blade or Darkmoon Blade will out-damage Occult weapons for the duration of the enchantment. However, Occult weapons hold the advantage of not having to be enchanted to reach their maximum potential, making them more useful in the long term.
Because they lack the Divine auxiliary effect, Occult weapons cannot be used to permanently kill skeletons found in The Catacombs and the Tomb of the Giants. However, the Occult auxiliary effect is said to be effective against Gods and their following and kin.
- Dark Ember description