6 treasures can be unlocked through main line quests and defeating certain NPCs.
Unlock Black Flame, Dragon Horn, and Balefire after finishing the related quests at level 28, 30 and 33. Unlock Downer’s Hammer, Shadow Tome, and Ancient Coins at level 80, 82, and 84.
Increases attack, defense, and maximum troops in command of all player's generals.
Method to Contain
You can spend gold to produce the treasure.
Treasures will have effects after production. You can also use iron to enhance the effects of the treasure produced.