There are 4 types of Mana cores.
They are located in the Heart, Brain, Lower abdomen, Spine
Heart: Mage Core: It provides an increased circulation of mana in exchange for poor physical capabilities. The core is mostly used by pure mages.
Brain: Mind Core: It provides an increased level of intelligence and information processing, it is similar to the Mage Core as it also reduces Physical capabilities, however, it also has less mana than the one in the Heart. It is mostly used by mages which use the Mind to fight, illusions, mind control, etc..
Lower Abdomen: Dantian Core: It highly increases Physical capability in exchange for a small mana pool. The core is mostly used by pure physical fighters, Swordsmen, Brawlers, Tanks, etc.
Spine: Flow Core: It increases Physical capability and mana, it highly increases reaction speed and casting speed. It is considered a special core due to the low amount of people being efficient Hybrid fighters. Meaning they use Magical and Physical ability to fight close range and long range.
The reason the others don't use the Flow core is because it requires a certain grade of mana to even be able to harness it.
To tier up Flow Core: Once a certain amount of mana accumulates a thread will form, you must slowly weave it upwards and you will reach the next tier.
To tier up Mage Core: Once a certain amount of mana accumulates in their hearts, a magic circle will appear, you must use it to enhance your Heart and you will reach the next tier. (The magic circles are random and they can't be passed down from others.)
To tier up Mind Core: Once a certain amount of mana accumulates in the brain, a veil will appear and one must assimilate with it to reach the next tier. The veil acts as a sort of emotional gate keep to make the Mind Core user more stable in tense situations.
To tier up Dantian Core: Once a certain amount of mana accumulates in the lower abdomen, it will unleash it all at once and you must absorb the mana back into the core to reach the next tier. It acts as more powerful refinement, therefore if you are not strong enough you could die.
Skills and affinity rank
[Beginner] [Basic] [Intermediate] [Advanced] [Superior] [Elite] [Supreme]
The skills are categorized into tiers and grades.
All the way from E- to S
E- E E+ ; D- D D+ ; C- C C+ ; B- B B+ ; A- A A+ ; S
S is considered the pinnacle of the stat reached in that particular tier, once you tier up, your stats will go back to E- though your strength will not diminish, you will continue to grow stronger.
It is most optimal to first maximize the stats before Tiering up as the potential stat loss could be considered crucial in the future.
Finally Mana Purity, it acts as a spell enhancement. If your mana purity is at 10% you will have a 10% increase in the effectiveness of all your spells. The number can go above 100%
SPOILERS BELOW CH 64
Skills
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-Skills / [Skill Merging]
[Herald of Light] [Advanced] [Passive]
# 250% increase in casting speed, 500% for Light affinity based spells
[Eyes of The Healer] [Intermediate] [Passive]
# See the ailments, illnesses, curses, and any kind of mind magic of those in your field of vision.
Hand to hand combat [Beginner] [Passive]
# Increases STR by 1 Minor Rank when fighting using only your hands
Discipline [Basic] [Passive]
# Mental magic has a 20% reduced effect on you
Shooting mastery [Beginner] [Passive]
# Any kind of projectile has a 20% increase in velocity
Purify [Intermediate] [Active]
# Purify everyone and everything around you, curing all diseases and illnesses
*Cost: 5% MP
*Radius: 200 Meters
Physical Enhancement [Beginner] [Active]
# Increase all stats by 1 Minor Rank
*Upkeep: >1% MP/S
Sword of Light [Basic] [Active]
# Summon 1 or multiple swords containing the Light affinity.
*Cost: >1% MP/S
Veil of Detection [Basic] [Active]
# Feel the mana of everything and everyone in an area around you.
*Cost: >1% MP/S
Aegis of Light [Intermediate] [Active]
# Create a protective barrier around yourself or others, absorbing 40% HP damage until broken. Alternate to healing mode to heal 30% of total HP. Able to cast an outer shield which can be used to parry attacks.
*Shielding Mode Cost: 5% MP
*Healing Mode Cost: 3% MP
*Outer Shield Mode: 1% MP, Refunded if parried or blocked successfully
Piercing Light [Intermediate] [Active]
A miniature sword that condenses and masks its mana. Has high defense penetration with considerable killing power.
*Cost: 5% MP
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A/N: let me know if I forgot something!