- This item was formerly known as the "Defiled Rune".
- This item is a reference to the Defiled Chalice from the game Bloodborne, and it had some similar functions to it previously.
- The sprite and tooltip are references to the game Celeste. The item's appearance is based on the Feathers from the game.
- In previous versions of the mod, this item also made enemies have a chance to critically hit you for 1.5x damage, make certain rare items have a 5% or higher chance of dropping, and make enemies drop 50% more cash.
- Before that, this item used to halve a player's max HP and increase enemy damage resistance by 50%.
- Prior to the 1.5.0.001 update, this item could only be used in Revengeance Mode or Death Mode.
|Combat||Charge • Damage Reduction • Hit Sounds • Immunity frames • Lifesteal • Minions • Proficiency • Rogue|
|Environment||Biome backgrounds • Events • Music • Status messages|
|Events||Acid Rain • Boss Rush|
|Items||Alternative crafting ingredients • Consumable • Crafting stations (By Hand) • Drops • Modifiers • Rarity • Recipes • Vanilla item recipes|
|Game||AI • Armageddon • Boss Health Bar • Configuration options • Death Mode • Defiled Feather • Fishing • Game controls • Iron Heart • Lore • Malice Mode • Revengeance Mode • Vanilla changes|
|Player||Adrenaline Meter • Aggro • Buffs and Debuffs • Death Prevention • Defense • Rage Meter|