By consuming the essence of the Beastmaster, you gain several boons:
*You become immune to all forms of venom. You gain a resistance to plant-based or inorganic poisons, though while usually not fatal you still suffer symptoms of poisoning. Diseases and parasites entering your body become inert until your body naturally expels them.
*Wild animals and monsters will not see you as a threat and only attack if rabid or attacked by you first. Creatures of human intellect like Sphinxes or dragons capable of human speech can make the conscious choice to attack you, but will instinctively have a positive impression of you.
*You gain an instinctive knowledge of the characteristics of every beast you encounter, including their requirements for habitat and food, how to best approach them, and how to treat any injuries or illnesses they might have.
*Any beast or monster you approach with the intent of taming them will rapidly grow to trust you so long as you don't mistreat them. You will form a mental bond with any creature you're taming that lets you sense the needs and thoughts of the creature, with the speed of the bond's growth determined by the creature's intelligence, aka the smarter it is the longer it'll take to fully tame the creature. Once the bond is complete the now tamed creature can be summoned to your side or dismissed either back where it came from or into a storage-dimension at will. Should a tamed creature die it will instead appear inside the storage-dimension and can be summoned after a waiting-period determined by the power of the creature. Creatures with a completed bond will be completely loyal to you and you will be able to share their senses at will. You can have an unlimited number of Bonds. Humanoid creatures without sapience such as primates or monsters such as goblins or orcs can be tamed so long as their intellect is insufficient to develop language or a culture. You can only form a bond with Monstergirls that are at least 50% nonhuman, so a centaur, lamia, arachne or mermaid would be tameable while a dwarf, elf, satyr, or human would not be.
*You can train animals or monsters, even those you haven't tamed so long as they cannot leave mid-training, in a fraction of the time it would normally require, and can train them beyond their normal limits, like teaching a monkey martial arts or a carrier-pidgeon how to read maps and fly to specific locations pointed out on that map. Things you trained a creature to do will never be forgotten. If you have tamed a member of a certain species you can make requests of untamed creatures of the same species. They aren't forced to comply, but if the request is something they can understand and that doesn't go against their nature or self-preservation-instincts the creature will usually comply. You can also give commands to larger groups of untamed creatures at once, and a group might comply when an individual would not. Asking a single rat to attack a grown human will be met with refusal, a swarm of hundreds of rats however will attack as requested.
*You can freely induce or suppress a tamed creature's mating-period. A creature born from two tamed creatures will automatically be born fully tamed. When breeding two tamed creatures you will see what traits the offspring could have and can freely manipulate them to give the offspring the desired traits, though you cannot add traits that the parent-creatures didn't have, so while you could breed, say, a lion bigger and stronger than it's parents, you cannot give it wings or gills. You could repopulate a species so long as you have a single breeding-pair and will never have to worry about inbreeding. You can mate two normally incompatible creatures to design new species, though the pregnancy-period for such cross-breeding will be between 1,5-10 times longer, depending on how drastic the difference between the parent-species is.
*Tamed creatures can survive in climates they normally wouldn't and can survive without food, though they will suffer. You can convert an area of up to 200 cubic meters into a habitat for your tamed creature with a climate and environment most suited for that creature. The shape of the habitat is up to you, it can be a cube, sphere, or completely irregular shape. It takes multiple days to set up an environment, and once you dismiss it the area will return to its original state within a few hours. Habitats are stationary, once created they can't be moved and the habitat's shape cannot be altered. You can have one habitat for each tamed creature, but you cannot create an environment unless you have a tamed creature that thrives in that type of environment. Also, if you have a tamed creature or are in the process of taming a creature that's native to environments hostile to you, such as the open ocean, arctic or volcanic wastelands, or even space, you will be able to survive in that space as well as the creature itself can. Note that this doesn't grant you it's a abilities, so while you could for example survive in space, deep under water or even in magma, your ability of locomotion remains unchanged.