When you select this Ranger Archetype at 3rd level you gain access to your own personal bestiary which allows you to record vital information about the monsters you have encountered and provides insight into their various weaknesses. Once per long rest you may select 1 creature type: aberrations, beasts, celestials, constructs, dragons, elementals, fey, fiends, giants, monstrosities, oozes, plants, or undead, to add to your bestiary. Alternatively, you can select two races of humanoid (such as gnolls and orcs) to prepare in your bestiary. You must kill at least one creature with the chosen sub-type before you are able to add it to your bestiary. While you have this creature type prepared in your bestiary you gain a +1 to attack and damage rolls against creatures with the chosen sub-type and gain advantage on Intelligence checks made with the Monster Lore ability to recall information about them. Alternatively, you can select two races of humanoid (such as gnolls and orcs) to prepare in your bestiary. You may prepare an additional creature type in your bestiary at 6th level and at 14th level. This ability replaces the Ranger's Favored Enemy feature. You may choose to prepare a creature type previously selected with the Favored Enemy feature at 1st level in your bestiary, even if you have not yet encountered a creature of that type.