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://touhou-danmaku-kagura-pha42097.answerblogs.com/30022374/5-dicas-sobre-core-keeper-gameplay-você-pode-usar-hoje