Talk:Barroch/@comment-109.160.227.83-20130515021727/@comment-79.254.51.116-20130516063309

Unfortunately, I didn't pay much attention at that time, but I can at least name one quest that causes him to upgrade. If I remember correctly, after completing "Accursed Errand" (the quest at Arisen's Refuge, you must gather 3 Cursed Dragonhorns) he upgraded once and (though I'm really not sure, definitely needs confirmation) after gathering 3 Bloodred Crystals for the NBQ Hope Springs Infernal (at The Warrior's Respite).

If I'm right, then I assume completing Eyes of the Deep upgrades his inventory again. I have a feeling, that the Quests, where you have to aquire monster drops, are related to Barroch's selling list (all those quests have the same "text", namely: "I call upon you, wanderer of the abyss. I call upon you, lost and witless human. You will bring me what I seek, and I will grant a boon to aid you on your travels.")

As I said, it really needs to be confirmed, but I do believe he updates after those certain quests.