This is a page of all the essences the main character, he will be having 9, and while he will be OP he wont be so Op that he can just re-wright reality as he pleases.
I'll just be writing my own spin on the essences's so they may be a little different.
Essence of the Witcher
By drinking this foul concoction that tastes of bitter herbs, you become a Witcher, a being who hunts things that go bump in the night; ie, monsters that prey upon humanity. You gain the following attributes:
You gain the opportunity to rebuild a new body however you wish, within human limits; regardless your mind, body, and soul will be ready and fit for adventure. Your parameters, knowledge, abilities, etc., will not degrade from both lack of use and old age; similarly, your powers and knowledge cannot be nullified, stolen, copied, etc.
An immense willpower to keep you going through hardship while retaining a flexible mind open to new ideas and concepts. You too shall gain an equally unbreakable spirit that never gives in to despair and immune to any form of corruption, including but not limited to cognitohazards, eldritch truths, and clarketech indoctrination.
A retroactively eidetic memory with instant recall, unlimited storage, tamper-proofing, perfect indexing, and protection from any form of traumatic / harmful memories and/or information.
You are cured of any and all physiological and psychological conditions, be they congenital, genetic, acquired, as well as from injuries, environment, upbringing, exposure, etc., no matter what, you are cured of such debilities. This regenerative effect will continue to affect you in a conceptual level - any ruinous curses, magical diseases, and even mundane injuries, shall be gradually cleansed, healed, and purged. This will not stop a transformation you seek, but will instead target any undesirable aspects in such transformations.
Your base constitution is enhanced, granting you a peak human body, capable of competing in all olympic level sports events in a professional capacity, and not just winning, but outright creating new world records. Your stamina and durability, however, is further amplified, rendering you more vigorous and robust than normal humans.
You innately gain the memories of a fully trained Witcher of no specific School, with the muscle memory and mental clarity to match. This entails a solid foundation in the various forms of Witcher bladework, hand-to-hand combat, alchemical knowledge and recipes, tracking, stealth, marksmanship, as well as an extensive education of monster biology and behavioral science.
You gain the ability to cast the 5 most commonly known Witcher Signs, spells that require nothing but gestures and focus to cast- Igni, Quen, Aard, Yrden, and Axii. Igni produces a stream of fire; Quen forms a magical shield; Aard produces a pulse of kinetic force; Yrden creates magical traps; and Axii confounds the target's mind. With time and effort, your proficiency in casting them will be beyond normal Witchers, from Igni burning as hot as dragonfire with an impressive range, to creating Yrden sigils capable of ensnaring even a giant or incorporeal spirits.
You gain a form of mind's eye and mental repository when facing other monsters, monstrous beings, and inhuman beings that aren't found in the Great Bestiary of the Witchers. Upon observing, defeating, or examining them, you will find that said repository will be automatically filled, granting you knowledge on their behavioral habits, abilities, as well as their alchemic properties. Any minor but useful quirks you have observed on such beings, consciously and subconsciously, will also be added in said repository.
This form of mind's eye will also aid you in harvesting not just the body parts of monsters you have hunted down and slain, but also useful herbs and plants and other materials. You gain an inventory specifically attuned to storing and preserving them. This will also produce suitable vessels to contain them, and once within your inventory, will place such things under stasis. When emptied, these vessels will simply dissipate into the aether.
Your education in alchemy isn't just limited in knowledge and recipes for curatives, oils, poisons, and potions, which requires the usage of harvested monster parts and other relevant ingredients to brew and use, but also an extensive theory in substituting one ingredient for another, as well as tweaking and altering existing recipes for your own benefit. With time, and research, you can derive new alchemic recipes for reagents specific to whichever world you find yourself in.
You also gain the starting gear for all Witchers - a pair of swords; one silver and one steel for monsters and humans alike, a set of generic leather armor, gauntlets, and greaves. These will in time absorb the ambient essence and spirit energy of your hunts, upgrading themselves to suit your demands.
Essence of the Remnant
The liquid in this silver canteen tastes like unrealized potential, gin, and soul. Drinking it grants you the following:
Your soul's power is materialized outside your body in the form of an Aura. While appearing to just be a thematically colored force field at first glance, it can be used to increase your strength, speed, healing, and even extend to the weapons you wield and the clothes you wear for various purposes.
Your Aura, alone and untrained, could make you a solid match for most of the hunters in Remnant from the get go, through sheer reserves and strength. If you really trained yourself, you could soar to the top and beyond quickly, as yours is uniquely limitless in how much you can grow it through training.
Aura's basic expressions are just the kindling for a much brighter flame, though. Known as a Semblance, this ability is largely unique between each person, with a few notable exceptions. You may copy any canon Semblance in RWBY, or create your own either from another CYOA or by freeform design. Remember that most Semblances shown so far have been simple concepts that possess surprising versatility. At its base, yours is around the strength of any of Team RWBY's own, but will grow from there easily with training like your Aura. With your starting Aura reserves, you could fire off an active semblance at full power for the better part of half an hour, and a toggleable semblance could be left 'on' for twice that.
You may Awaken Aura, and Semblances as a result, in other people. Their reserves and strength cannot surpass yours, but you may choose roughly how strong their Aura is compared to yours, with a cost on your own Aura based on that.
Combat and wilderness survival skills such that you could find a good job as a Huntsman from the moment your boots hit the ground.
A unique weapon, connected to your soul on an even deeper level than those of the other warriors on Remnant. It doesn't have to be mechashift capable, but it helps. When wielding this weapon, your skill in combat skyrockets through your mastery of it alone. Even if you haven't chosen a secondary (or further) shifting form for this weapon, it folds down into a relatively tiny wearable form, discrete against all forms of scanning. It will reappear within 24 hours if destroyed.
A unique outfit, or set of thematically similar outfits, that slowly regenerate from any damage done to them, are extremely easy for you to modify and use your Aura on, and may contain Dust weaved into the threads for a variety of effects when your Aura is pumped through them. They also happen to be extremely beautiful, if maybe a little cluttered. Expect lots of zippers and belts in weird places, although you can change into or out of them at the drop of a hat.
A mechashift briefcase with a larger unfolding inside that contains: The purest raw crystals of every kind of dust imaginable (potentially including Fanon ones), reloading infinitely every time you close and open the case, and A Scroll that can connect to the internet in any reality, and that reforms itself inside the briefcase if ever destroyed or sufficiently damaged.
Essence of the Elder Blood.
You may remake your body however you want, even turning it into any of the different species from the Witcher universe.
You have now become an active carrier of the Elder Blood, granting you the ability to manipulate and control both time and space. This starts out allowing you to simply teleport in short, controlled burst, or travel across dimensions in the local multiverse. But in time you will find yourself increasing in power and completely master both time and space to unprecedented levels. You will never have this power go out of control or do something you don't want it to, such as becoming unpredictable, uncontrollable and creating extremely dangerous explosions.
Another bonus of the Elder Blood is that it makes you an incredibly powerful Source. A Source is a person born with a natural affinity for magical abilities. Usually, a Source would find it rather difficult to control their magical power, but you don't have that problem. You may also teach other Sources to control and command their immense powers without any danger.
Even if you are a male, you may have the activated version of of the Elder Blood.
You may optionally receive the incredibly green eyes and ashen-white hair that comes with it.
Optionally, you may receive the training of a sorcerer. You will equal Yennefer and Triss in both knowledge and skill when it comes to magic. This also gives you the knowledge of how to create the Elixir of immortality that the Sorcerers use to live forever.
You can at any time make any world you are in go through a Conjunction of the Spheres, filling the world of with hundreds of creatures of all shapes and sizes, as well as magic.
Optionally, you may receive your very own sword. It will fit you perfectly, being the perfect weight, size and balance to feel like an extension of yourself. But the greatest benefit of this sword is that it is a perfect alloy of silver and steel, making it just as effective against men as it is against monsters. It will also never blunt, break or shatter. It is also enchanted with a near unique effect. It will grow stronger with you, always growing just as strong as you are. It is also incredibly good at channeling magic and other similar powers you have.
Essence of the Archmage
By consuming the essence of the Archmage you gain several boons
Perfect memory with infinite storage
Beyond genius level intellect
Capacity to learn any 'magic' even unique ones upon seeing it once or understanding enough about it. This also includes things like Ki, Chakra, soul power, etc.
Possess a supernatural reactor that can adapt to any supernatural energy to fuel spells, enchantments, powers, etc. this reactor provides a steady supply of power that will grow over time, right now you could use high consumption abilities with wild abandon and still not make much of a dent after a few hours.
Can teach others systems even if they previously lacked the capacity.
Can teach others systems even if they previously lacked the capacity.
Manipulate entire systems or combine then with experimentation.
Are capable of casting any spell as long as you have the energy not requiring any extra element like a focus or materials. The time required to cast if any remains however.
Essence of the Scribe
Tastes like paper.
You become the ultimate Scribe knowing every language as soon as you enter a universe.
Any dangerous knowledge will not harm you.
You gain Perfect memory, with infinite storage, perfect indexing, protection from harmful memories and the ability to move memories into hidden storage, replacing them with a mental note that you have done so and can restore them at will.
As well as a mental library of everything you craft a book for.
You can craft books out of raw mana that grant anything from a race or tier change to longer life, skills, abilities, affinities, talents or anything even concepts, souls and godly domains.You either need to have these yourself or have created them from someone who has them. Though once you have created one book you have it in your metal library so to speak.Allows you/them to become the race/species in question and also functions as an alt-form blender. Allowing any number of forms or races/species.This lets you trade or bargain for anything.If you know the cannon a specific timeline was supposed to go you can create a book that shares that to give to others and if real will be believed.
In regards to gamer/litrpg/cultivation systems You may:Craft a special Level Reset book that only sets a person's level to level 1 they keep all skills, stats and professions they have already gained. Or it can just reset them to level 1 and lose everything or anywhere in between.Craft a book that grants said system to others.Craft a book that grants a specific level of said skill or affinity though you must have said skill in your mental library.Use and/or merge any such systems you encounter.
A large pocket plane
You may alter this plane at will.
Essence of DxD
You have gained an affinity for every shown, and implied magical system in DxD, from Holy Magic to Youjutsu, to Devil Magic. Even if your chosen race couldn't use it from before, you can use it, however. You start with a basic understanding of each system.
You gain a mental encyclopedia of every fighting technique shown and implied in DxD. From Vasco Strada's Holy Punch to Ddraig's Boost. It dosent mean you can use any of them but you can if you train to or just use them as reference to make new techniques.
You also gain a separate mental encyclopedia filled with miscellaneous magical knowledge shown and implied in DxD. From Yu Long's Transformation magic to Mind Magic.
You gain another mental encyclopedia filled with the blueprints, concepts, and ideas of shown and implied Magical items from DxD. From the System's in Heaven to Ajuka's Evil Pieces.
Essence of the World Library
After drinking this transparent brown liquid you will feel for a moment the environment silence.
You will gain the ability to summon a floating virtual screen with ALL knowledge from your original world.
As if it were your local library you can summon any book, the book will disappear after you stop touching it but it would remember where you left it and any notes that you write on it(if you are that kind of person), alternately you can summon a notebook to write notes.
If you have a question using the search bar on the virtual screen will show you a list of objects(books, webpages, diaries, etc.) with the answer.
As this Library contains ALL of the information of your original world you can also enter and read any forum from any time without any administrative censorship allowing you to see the deleted posts. The webpages will be frozen and you cant modify them in any form.
You can also summon all forms of entertainment.
If it's a movie a projection will appear on the wall that you choose, if it's a song you will hear it at the perfect level around you as if you were in front of the artist singing/playing if its a videogame a projected screen will form with the control of your choice, in case it's a multiplayer game it would use ultra-advanced AI to be indistinguishable from real players. if it's a tabletop game it would generate a table with all that is required to play it(board, miniatures, book rules, dice, notebook(it saves what is written on to continue the game later)).
Essence of Protection
By drinking this rainbow coloured shield-shaped essence you gain the following benefits
You gain an unbreakable, unshakable will, even the greatest of unspeakable horrors will not even make you flinch. You will find yourself able of going through even the greatest of hardships and not so much as bending
You are protected from all forms of time manipulation not only allowing you to move freely inside of even a time stop but it also protects you from not only having your timeline changed but also keeps you from being erased from the timeline. This of course protects you from being rapidly aged or deaged
You are protected from all life, power, mana and soul draining effects
Your Essences and other Powers cannot be stolen from you or sealed away
You are protected from reality manipulation ensuring that you can never be erased from reality
You are protected from instant death effects, if you opponent wants to kill you they will have to do it the hard way
You are protected from all forms of mental manipulation or eavesdropping
You are protected from all forms of possession, unless you personally allow it
You are now Fateless, the chains that bind all have no hold on you anymore, you are free to choose your own path and none but you have a say in it, this also has the side effect of making you impossible to predict using precognition or other times of fate reading
You are protected from all forms of diseases, poisons and toxins
Essence of the Blank
By taking this essence, you gain but one benefit:
Your potential becomes limitless. You can learn any discipline or skill set, even if you shouldn't be capable of it, without forgetting it and practice them into mastery, no matter how many you learn. Any abilities you have from other Essences will increase where possible and develop in ways beyond their initial purposes.