Pocket of Poison
A poisonous substance of some sort.
Etc. Items
Sell Price to Secret Vendors: ? 
Gold
Sell Price at Black Trader: 10K-50K Gold
How to Obtain:
Dropped by:
Couatl
Notes:
Trade 
Paylon 
Armor Piece(40), 
Broken Magic Stone(20), 
Pocket of Poison(4), and 
Element Crystal(8) to obtain 
Oatwill's Light Armor