Phase magic.
A school of magic under the dark magic arts.
Dark magic, in particular, has many forms of uses and some schools of it are considered taboo magic.
Overall, dark mana was at its best in affecting one's surroundings and being.
It was an extremely strong element that gave birth to chaos magic and heretic magic.
The former was infamously known as the best element for pure destruction while the latter could bend and claw the mind of one's enemies.
Many mistaken the latter part as some type of magic school under death magic, thus categorizing it as a taboo spell.
But the popular way to use dark mana was to conceal one presence and hide it from other people.
The school of phase magic through brought that very idea to the extremes.
This type of magic aimed to completely erase one's presence by reality itself and hide their true body in a separate place hidden by dark mana.
