Whenever a monster is generated or loaded in the world of Daimonin, items are
placed in it's inventory according to the monster's treasurelist.
Hence, treasurelists define what items get dropped when the monster is
killed. Even more importantly, they define which skills and spells the
monster has at it's disposal.
You can view the treasurelists by selecting menu "Resources->View
Treasurelists", or from the attribute dialog.