Sorcery (Dark Souls)

 is a form of Magic in Dark Souls.

General Information
Sorceries are cast by Catalysts that can be obtained throughout the game. Catalysts usually scale with the Intelligence stat, although there are exceptions.

Most Sorceries can be purchased from various Merchants found throughout the game. Some are found as lootable items.

There are more sorceries than either Pyromancies or Miracles. While Pyromancies focus on offensive spells and Miracles focus on defensive and healing, Sorceries include a variety of utility and augmentation spells as well as a range of offensive spells.

All forms of offensive Sorceries cause Magic Damage which is typically effective against iron armor, tough scales, and other physically resilient materials.

Lore
Seath the Scaleless is said to be the "grandfather of sorcery".

Big Hat Logan played a role in the development of numerous Sorceries. During his infatuation with Seath in the Regal Archives, Logan develops, or boosts, other Sorceries.

The ancient land of Oolacile has its own Sorceries which are an "approximation" when compared to modern Sorcery and are characterized by augmenting the weapon or body, rather than causing offensive damage.

Manus, Father of the Abyss is the source of at least one Abyss Sorcery. The other Abyss Sorcereries are said to be discovered by an Oolacile sorcerer on the brink of madness and differ from normal offensive Sorceries, which are derived from souls, in that they draw power from humanity and cause both Magical and Physical Damage due to their "weighty" nature.