Corruption is a common Peerless Reagent that is used in the creation of certain Craftable Artifacts and Magical Craftables. It spawns on the corpses of Peerless monsters. There are two subtypes: reagents that only spawn on a specific peerless boss, and ones that can spawn on every peerless boss. Corruption is of the latter type.

Corruption is used along with other ingredients to create the following items:

Blight Gripped Longbow Blight Gripped Longbow
Ironwood Crown Ironwood Crown
Stitcher's Mittens Stitcher's Mittens
Corrupted Rune Blade Corrupted Rune Blade
Luminous Rune Blade Luminous Rune Blade
Mischief Maker Mischief Maker
Scrapper's Compendium Scrapper's Compendium
Shard Thrasher Shard Thrasher
Quiver of Lightning Quiver of Lightning
Darkwood Leggings Darkwood Leggings
Darkwood Chest Darkwood Chest