Gloomfang

Found in

Loot table	Quantity	Drop rate
Shadow Key	1	0.0013% (1 in 77,000)

Chance per kill, from the game's loot data: one loot pass on an unscaled map. Party-scaled instances roll the same tables again, so these are floors, never ceilings. A rate marked "at least" is one whose roll count depends on data this wiki does not carry.