Sunfury

The Sunfury is a weapon that can only be found in Shadow Chests in the Underworld. Despite being classified as having slow speed, its actual speed depends on how far away your target is. When the ball goes too far from the player or hits a block, it retracts instantly. Using the Sunfury at close range is a decent strategy since it will retract on impact and can be used again immediately. This weapon, along with other flail weapons, is not affected by an increase in melee speed.

Update Info
1.0.6 - Inflicts On Fire! debuff, No longer dropped by Bone Serpents, only found in Shadow Chests.