Worm Scarf

Corruption boss reward and percentage damage mitigation

Obtained from the Eater of Worlds Treasure Bag in Expert and Master Mode, the Worm Scarf provides a flat 17% reduction to all incoming damage taken. Unlike armor defense, which subtracts a fixed numerical value from enemy hits, this percentage reduction scales in effectiveness as monster attack power rises dramatically in Hardmode and higher difficulty tiers.

Endgame defensive stacking across boss encounters

Because percentage damage mitigation applies after flat defense calculations, the Worm Scarf significantly dampens heavy hits from late-game bosses like Duke Fishron, the Empress of Light, and the Moon Lord. It stacks additively with the 10% reduction from an Endurance Potion, reaching 27% total damage mitigation. Equipping it alongside protective accessories like the Frozen Shield ensures survivability during demanding Expert encounters.

Trivia

• The 17% damage reduction applies to all sources of hostile damage, including projectiles and contact strikes.
• In Crimson worlds, players can obtain this scarf by establishing an artificial Corruption biome to fight the boss.
• Reforging the scarf with the Warding modifier adds 4 additional flat defense points.