Bitterblack Armors are found in cursed form and are unusable until they have been purified.
Bitterblack Armors are not available outside Bitterblack Isle.
Only unpurified Armor can be traded, the purification results cannot.
“Bitterblack Armor Lv.2 is an item available in Dragon's Dogma: Dark Arisen. Bitterblack Armor...Bitterblack Armor Lv.2