Captain Drenn

Item	Chance	Quantity
Armored Chitin	≈ 38%	1–2
Ancient Armor Fragment	≈ 30%	1–2
Scarab Coffer Key	≈ 7.1%
Fury of the Forgotten Swarm	≈ 3.7%
Bone Scarab	≈ 1%
Bronze Scarab	≈ 1%
Clay Scarab	≈ 1%
Crystal Scarab	≈ 1%
Gold Scarab	≈ 1%
Ivory Scarab	≈ 1%
Silver Scarab	≈ 1%
Stone Scarab	≈ 1%
Alabaster Idol	≈ 0.5%
Amber Idol	≈ 0.5%
Azure Idol	≈ 0.5%
Jasper Idol	≈ 0.5%
Lambent Idol	≈ 0.5%
Obsidian Idol	≈ 0.5%
Onyx Idol	≈ 0.5%
Vermillion Idol	≈ 0.5%
Pattern: Runecloth Pants	≈ 0.2%
Pattern: Felcloth Robe	≈ 0.07%

Drops and chances are estimates; not all have been confirmed in the current game. 182 rarer world drops are not listed.