Hookshot, a tool that shoots a retractable point on a chain and then pulls things together when the chain retracts. In practice, this should probably be implemented as an invisible beam that gets shot in the player-chosen direction, with a short range of only 3 or 4 squares. It has various effects depending on what it hits:

• Wall or furniture: Player is dragged towards that space.
• Boulder or solid stone: Goes “Clink!” and does nothing. (Except maybe if the player is a giant, they can drag the boulder to themselves with it.)
• Monster: Either deals small damage, or yanks the player and monster together. The relative weights of the player and monster determine who gets yanked more (could be either or both).