Strahd_Von_Zarovich said:He'll go to the local smithy and buy banded mail and a decorative steel gladiator helmet for himself.
He'll sell his masterwork studded leather armor in return and add as much money he needs to.
Rhun said:The trader's place is a large building, which seems to stalk supplies and equipment of almost every kind, from farm implements and such to adventuring gear, arms and armor. Gremag is a short slender man with dark, slicked-back hair. Zirat begins to feel greasy just from looking at the weasily man. While he does offer you the expected amount of coin for your masterwork studded leather, the price he is charging for the banded armor seems somewhat high. He is asking three hundred pieces of gold for the suit.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.