The Abyssal Chain is a supernatural gauntlet that can fire a spear-tipped chain that will enable War to pull foes to himself or vice-versa. It can also be used to swing across giant chasms too large for War to jump across alone. Orange grapple points are used to hang on, while blue grapple points are used to swing on. The Abyssal Chain can also be used on demon growth to pull you onto it. It is necessary to defeat some spiders in the Iron Canopy and is very useful when battling Silitha. It is obtained in the Iron Canopy and the achievement/trophy "Reach Out & Touch Somebody" is unlocked upon gaining this.
This object was probably based off the hookshot from the Legend of Zelda series, which Darksiders gameplay is based on.