The Vault of Arms is the "store" in Conclave where characters can use the Renown they have earned from quests to obtain equipment. Some items are available for all characters, some are archetype-specific, and some are unlocked by gaining certain Distinctions during gameplay.
Items in the Vault have an associated "cost" measured in Renown, set at values 0, 125, 250, 500 and 750, with higher quality items having higher renown values.
A character may freely exchange items into and out of the Vault as long as the total renown value of all the checked out items is less than or equal to the characters renown score.
If a character finds an unidentified Treasure Equipment on a quest, it may be identified and equipped after visiting the Vault of Arms.