Swamp Rot

The Swamp Rot is a non-consumable Hardmode throwing weapon that can autofire. It is dropped by Swamp Things during the Solar Eclipse event. It throws swampy javelins that stick into enemies for 10 seconds, dealing additional damage over time at a slow 10 damage per second. This can stack with successive stuck javelins in the same enemy, up to 50 damage per second. Up to five javelins can be stuck in all enemies in total at a time.

Like most non-consumable throwing weapons, using this weapon builds up an exhaustion meter that appears below the player. Not using the weapon will make the meter slowly go back down. However, if it becomes completely filled, the user will be inflicted with the Exhaustion debuff, causing all non-consumable throwing weapons to deal massively decreased damage for some time. The meter resets after the debuff ends.