Magic

Magic
TBA

Magestones
Magestones are magic gems found in coal mines that can be used by mages to channel their magic and collect blot or to power magical artifacts such as the chandeliers used in Night Raven College. Every student at Night Raven College, with the exception of Grim, is given a magestone attached to a pen that they use to channel magic. Night Raven College's outfits all contain pockets for their students to easily carry their magic pens, with the exception of their ceremonial robes that instead have a key-shaped carrier for the pens attached to their waist.

Unique Magic
A Unique Magic (Signature Spell in EN) is a spell distinctive to the caster. It is developed subconsciously and used on instinct the first time, as seen with Deuce's first time using his unique magic. The name of the spell is also not consciously picked by the caster.

Blot
Blot is an ink-like substance created as a byproduct of magic use. The amount of blot created by a spell is influenced by a person's emotions, with negative emotions like anger, fear, and sadness causing more blot to be created. Blot will accumulate inside the caster of a spell unless they use a magestone to collect it. Every person has a natural amount of blot they can tolerate on their own and this amount generally does not increase or decrease with the amount of mana a user has. Blot naturally fades with rest and self-care. If the amount of blot accumulated inside the caster exceeds their blot tolerance, overblot occurs.

Overblot
Overblot is a negative state that occurs when a mage accumulates more blot than they can tolerate. The blot then manifests as a Phantom representing the negative emotions of the caster. The Phantom will then drain the mage's magic until it "runs out," causing the mage to disappear and leaving only the Phantom remaining. In order to end the overblot, the caster must be separated from the Phantom. If the phantom and the mage can be separated, the phantom will disappear and the excess blot will crystalize.
 * In Episode of Heartslabyul, it was shown that one of the side effects of overblotting is the victim starts leaking black inks from their head as they kept overusing their magic to corrupt them further. The final stage of blotting has the victims undergo a painful transformation once they fully overload their magic completely.