Keen Hunter

Fill in every entry in the Hunter's Journal - one record per creature type in the game. You log a creature by killing enough of them (Dream Nailing an enemy also reveals its journal note). This means encountering and killing at least one of every enemy across every area, including the rare and DLC foes, so it's a long, thorough bestiary sweep - use a checklist for the awkward ones (certain Deepnest, White Palace and Colosseum-only enemies). Completing it earns you True Hunter.