Valediction

The Valediction is a post-Moon Lord rogue boomerang that drops from Reaper Sharks after Polterghast has been defeated. It continuously throws large homing reaper scythes that travel in high velocity, and can pass through tiles. Each reaper scythe can damage and pierce through unlimited enemies, but a thrown scythe will return soon after striking its intended target at least once.

Performing a stealth strike with the Valediction causes three typhoons that deal half of the scythe's damage to appear on enemy hits.

The Valediction also has a rare item variant called The Reaper that also drops from Reaper Sharks post-Polterghast.

Trivia

 * The word "Valediction" means the action of saying farewell.