Essence of Skill/Power Creation
This essence tastes of self-improvement and future victories
By consuming this essence, you gain one skill(Life) point(LP) every second that you exist, and you gain more by performing actions like combat, satisfying actions like eating, fulfilling lusts, or feeling any sort of desire.
LP is granted similarly to Danmachi. The greater the danger or deeper the feeling, the greater the LP reward.
Skills rank from D to C to B to A to S with D being kind of useful in certain situations but still weak and S being an isekai or essence level cheat and the creation of such skills is priced accordingly.
All created skills/powers will start at rank D.
Using LP, you can create, modify, upgrade, or merge skills/powers.
Skills/powers can be anything as long as you can describe them, or you can simply rip off powers/skills from elsewhere; just remember how they start out.
While you can spend LP to upgrade your skills/powers, you can train them up as well.
You may create meta-skills, skills that increase. You can also train theme LP to gain or decrease the cost for skill creation or modification, but it will cost two to three times the skills rank to do so. All powers created by skills cannot be drained or copied.
Essence of the Blank
By taking this essence, you gain but one benefit:
Your potential becomes limitless. You can learn any discipline or skillset, even if you aren't capable of it, without forgetting it and practicing it into mastery, no matter how much you learn. Any abilities you have from other Essences will increase where possible and develop in ways beyond their initial purposes.
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.
Manipulate entire systems or combine them with experimentation.
You 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.