Spirit Merchant (technically traded). Each of these marks the exact location of an outer biome boss spawn. Each scanner recipe uses a resource unique to the boss's biome. Either found on the ground or as a mob drop. Screenshot by Bonus Action Glow Tulips, and recipes that incorporate them, https://baldursgate3gameplay29516.ltfblog.com/29170327/ajudar-os-outros-perceber-as-vantagens-da-core-keeper-gameplay