Supply and Demand
Right now, a duplicate you don't need sells back to the Wandering Merchant for Embercoin — priced by rarity tier, same as your Vault.
The Marketplace concept takes that same Embercoin and those same items and puts another hero on the other side of the trade, instead of the Merchant.
The ExchangeConcept
Elixir of Speed
Rare tier
500 Embercoin
Iron Sword
Common tier
150 Embercoin
Ember-Wrought Crown
Singular tier
2,500 Embercoin
What's Live Today
No player-to-player trading yet — but the economy underneath it already is. Earn Embercoin by questing, then spend it at the Shop or with the Wandering Merchant, and manage what you've got in your Vault.