Grappling Hook

The Grappling Hook is an item created using a Hook and three Iron Chains. When used, the Grappling Hook will extend, latching onto anything it can reach; if it goes too far, it will retract. The player will be pulled onto the wall and will be stuck there until they jump or use the Grappling hook on another block, allowing for easier placement of torches. The player should take care not to hang for too long - after 60 seconds of hanging, the player will fall off, similar to the Ivy Whip. The Grappling Hook is currently used in the crafting recipe for the Ivy Whip, an upgraded version of the Grappling Hook.

Trivia
The tooltip added in 1.0.4 to the Grappling hook is a reference to Mortal Kombat.