Dal Shabet

When she saw the black liquid, she immediately remembered lines from the witch's diary, and, disregarding all caution, the girl drank the contents of the vial.

When the black liquid entered Nemo's body, she initially felt unusually good, but this did not last long. After some time, she fell to the floor, began to gag, and a large amount of blood poured from her mouth, as well as from her nose, eyes, and ears. Then she passed out for a few minutes, and when she came to, she discovered that any spells she had cast on herself before had vanished. In addition, she noticed that her skin and hair had turned the color of volcanic rock.
— Effect of the black potion from a sorceress from the Northern lands of the Wilds.
The character gains absolute immunity to magical effects but also loses the ability to use magic; their magic energy stat is reduced to zero.