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. It’s a great value at $13, but don’t let it overstay, https://ravendawnlanamento83703.bloguerosa.com/29183902/obtendo-meu-core-keeper-gameplay-para-trabalhar