Gensokyo/Cleansed Crystal Mirror

The Cleansed Crystal Mirror is a Hardmode accessory. When a player wearing it is hit in melee, the attacking enemy will deal 20% less damage for five seconds.

The Cleansed Crystal Mirror can be purchased from the Curio Trader after defeating all Tier 6 Bosses and the Lunatic Cultist. Alternatively, defeating any Tier 7 Boss will also make it possible to buy this accessory.

Trivia

 * The Cleansed Crystal Mirror is one of the tools of judgement used by Eiki Shiki.