How to get Dungeon Key in Sailor Piece

Epic

Dungeon Key is a epic item in Sailor Piece, obtained from World bosses (12-75%). Below are all confirmed sources and everything it's used for.

Where to Get Dungeon Key

There are 13 confirmed sources for Dungeon Key, ranked below by usefulness. Farm rates below are from community tracking.

Source	Location	Drop Rate
World bosses (12-75%)	—	Guaranteed / n/a
Saber Boss	—	10%
Sukuna Boss	—	20%
Gojo Boss	—	15%
Jinwoo Boss	—	25%
Aizen Boss	—	30%
Qin shi Boss	—	15%
Yuji Boss	—	12.5%
Alucard Boss	—	33%
Ichigo Boss	—	20%
Madoka Boss	—	45%
Vergil Boss	—	60%
Madara (The Strongest Shinobi) Boss	—	75%