Worm Scarf

The Worm Scarf is an Expert Mode accessory that reduces incoming damage by 17%. The Worm Scarf is always obtained from the Eater of Worlds' Treasure Bag.
This damage reduction from this item is calculated after defense is applied:
Damage_taken = ( Raw_damage - (Defense * (.5 or .75 or 1 for normal/expert/master modes respectively)) ) * (1 - .17)
Visually, it appears to be piercing through the player’s shoulder.
== Tips ==
* Percent damage reduction on accessories/potions apply first, then damage reduction on set bonuses are applied (e.g. Beetle armor, Solar Flare armor).
* When fighting the Dungeon Guardian, the Worm Scarf (when combined with a few potions or accessories) can allow the player to survive a hit from the Dungeon Guardian without the use of too many accessories and buffs.
* As the game progresses and especially on higher difficulties, enemy damage will start hitting well into the hundreds. The Worm Scarf thus becomes a valuable tool in increasing survivability, especially considering the damage reduction is equal across all difficulties unlike defense.
* Since the Worm Scarf can be taken into non-expert worlds, it is often a good idea to level a character up to near or post-Hardmode gear, create an Expert world, and easily defeat the Eater of Worlds for its Worm Scarf, which remains useful even at endgame.
== Notes ==
* Beetle armor at its 45% state, Worm Scarf (17%) and Endurance Potion (10%) will reduce damage by nearly 60%.
:(100%-45%) * (100%-(17%+10%)) = 40.15% damage taken = 59.85% damage reduction
:Frozen Turtle Shell (25%) will further increase it to almost 74%.
:(100%-45%) * (100%-(25%+17%+10%)) = 26.4% damage taken = 73.6% damage reduction
== History ==