Virus

Anomaly Magic (異常魔法 Ijō Mahō) is a Caster-Type Black Art which allows the user to inflict pain in the user through the creation of a virus in any part of the user's body

Description
The Anomaly Magic is an extremely sinister form of Black Magic which allows the user to create a virus anywhere in the opponent's body. The virus is claimed to eat the victim from the inside. The effects are dependent on the organs affected. It can cause severe diarrhea if the large intestine is targeted or could even be lethal if the brain is attacked. But this form of Magic can be easily negated using healing abilities such as the Sky Dragon Slayer Magic