Every chest and monster that can drop Needle Case, with the drop chance in each zone and Gyldening Intensity. A range means the rate shifts with party size and map district.

Treasure chests

Spiked Rack

Normal (either zone)35.4%–45.2%Hallowgrove · Chaos26.7%–34.4%Brandrgarde · Cataclysm13.2%–17.3%

Handcart

Normal (either zone)35.4%–45.2%Hallowgrove · Chaos26.7%–34.4%Brandrgarde · Cataclysm13.2%–17.3%

Iron Pot

Hallowgrove · Chaos28.6%–37.2%Brandrgarde · Cataclysm21.4%–28%Normal (either zone)11.3%–15%

Open Sack

Hallowgrove · Chaos28.6%–37.2%Brandrgarde · Cataclysm21.4%–28%Normal (either zone)11.3%–15%

Wicker Basket

Hallowgrove · Chaos28.6%–37.2%Brandrgarde · Cataclysm21.4%–28%Normal (either zone)11.3%–15%

Silver Jar

Normal (either zone)17.7%–23.4%

Iron Chest

Normal (either zone)6.5%–19%Hallowgrove · Chaos3.8%–12.8%Brandrgarde · Cataclysm2.2%–11.3%

The Exiled

Normal (either zone)2.5%–19%Hallowgrove · Chaos4.4%–16.1%Brandrgarde · Cataclysm2.2%–12.3%

Military Chest

Normal (either zone)6.6%–19%Hallowgrove · Chaos4.4%–12.8%Brandrgarde · Cataclysm2.2%–6.7%

Shipwreck

Normal (either zone)6.6%–19%Hallowgrove · Chaos4.4%–12.8%Brandrgarde · Cataclysm2.2%–6.7%

Forgotten Tomb

Normal (either zone)6.6%–19%Hallowgrove · Chaos4.4%–12.8%Brandrgarde · Cataclysm2.2%–6.7%

Gift of Fate

Normal (either zone)2.5%–19%Hallowgrove · Chaos1.4%–16.1%Brandrgarde · Cataclysm2.2%–12.3%

Timber Chest

Hallowgrove · Chaos5.5%–16.1%Brandrgarde · Cataclysm4.2%–12.3%Normal (either zone)2.5%–7.5%

Civilian Chest

Hallowgrove · Chaos5.5%–16.1%Brandrgarde · Cataclysm4.2%–12.3%Normal (either zone)2.5%–7.5%

Goods

Hallowgrove · Chaos1.4%–16.1%Brandrgarde · Cataclysm4.2%–12.3%Normal (either zone)2.5%–9.1%

Gilded Chest

Normal (either zone)3.4%–10.1%

Copper Chest

Normal (either zone)2.2%–10%

Silver Chest

Normal (either zone)3.1%–9.1%Hallowgrove · Chaos1.4%–4.0%

Nobleman’s Chest

Normal (either zone)2.2%–6.7%

Mistchaser's Satchel

Hallowgrove · Chaos3.3%Brandrgarde · Cataclysm2.2%Normal (either zone)2.1%

Monsters

Corroded Guard

Other100%Brandrgarde · Cataclysm3.0%–8.7%Hallowgrove · Chaos2.0%–6.9%Hallowgrove · Normal0.79%–2.9%Brandrgarde · Normal0.96%–2.9%

Gylden Corroded Soldier, Berserker, Strawer Chief, Fungus Matron +3 more

Hallowgrove · Normal2.8%–11%Brandrgarde · Normal3.8%–11%Hallowgrove · Chaos0.97%–4.0%

Corroded Soldier, Sacred Chamber Priest, Corroded Archer, Strawer +8 more

Brandrgarde · Cataclysm3.0%–8.7%Hallowgrove · Chaos2.0%–6.9%Hallowgrove · Normal0.79%–2.9%Brandrgarde · Normal0.96%–2.9%

Frenzied Wizard

Hallowgrove · Normal0.74%–7.5%Brandrgarde · Normal2.5%–7.5%Hallowgrove · Chaos0.26%–2.6%

Parading Corpse, Elite Corroded Soldier, Elite Corroded Priest, Elite Corroded Archer +8 more

Brandrgarde · Cataclysm2.3%–6.9%Hallowgrove · Normal1.3%–6.8%Brandrgarde · Normal2.3%–6.8%Hallowgrove · Chaos1.2%–6.0%

Flesheater, Tyrannical Executioner, Twinblade Warrior Statue, Soulgnawer

Hallowgrove · Normal2.8%–4.2%Brandrgarde · Normal4.2%

Rates are the chance per chest opened or monster looted. Low rolls also build up the drop guarantee, which upgrades a future drop to Legendary once it fills.