Chigusa Negima OBD
Worst villain in Negima

Name: Chigusa Amagasaki
Origin: Negima
Gender: Female
Classification: Eastern Mage/Onmyouji/Summoner
Age: Around 20s
Powers and abilities: Flight, summoning demons and phantom spirits, can use eastern magic using talisman charms, can use fire and water element spells, can create magical barriers, can see spirits, can disguise herself, can create shikigami, can create time/space loops, can use the magical powers of others to summon a demon god
Weaknesses: As summoning Sukuna would require vast amount of mana, she will need Konoka's mana for it to be summoned
Destructive capacity: Building level+, possibly Multi-city block level+ with Sukuna
Range: Several hundred meters
Speed: Supersonic+ reactions
Durability: Superhuman, Building level+ with barriers
Strength: Superhuman
Stamina: Superhuman
Standard equipment: Her talisman charms
Intelligence: Very clever, she made plans of sabotaging the western mages although it failed
Notable attacks/techniques:

Om: A word that's attached to the beginning of a mantra. The literal meaning is "the ultimate truth of nonexistence". Shingon is Sanskrit for "mantra" and can be translated as "spell." Originally they were magic spells used by the Brahman class in India, and those spells were recorded in the Veda (an ancient Indian religious text). In 1816, the German Franz Bopp discovered that the grammatical structure of Greek and Latin closely resembled that of the European and Sanskrit classics, and he established the modern subject of comparative literature. In the same way, the structure of the spells of eastern magic and that of western magic of Negi and company are distant relatives of each other.

Om Kiri Kiri Vajra Un Hatta: Used by members of an esoteric branch of Buddhism as part of a consecration ritual specifically, to purify offerings to deities (be it Buddha, a saint, or a demon-god). In Negima!'s Forty-seventh Period, it's used to offer Konoka's chi or "spiritual power" to various demons in order to summon them.

Om ak vi ra un kya sha rak man: This mantra is called the eight-character spell, and can be recited in various ways. It's called the eight-character spell even though it has nine characters because the first Om at the beginning of the mantra is a decorative attachment.

- Ja/A/Ii/Da: The Sanskrit characters cut into the legs of the spider demon. Ja means "battle enemy", Ii means "disaster", and Da means "Hold a grudge". It's most likely a kind of magic for controlling Onmyou Gods.

- A Vi Ci: The Sanskrit characters carved into the thousand gates. They mean "Endless Hell" and they establish the boundaries for the "never-ending spell". A shrine with a thousand gates, like the Fushimi Grand Shrine. It's the main temple of the Kansai Magic Association not far from Arashiyama and Sagano, but details are unknown. Kagabikonoyashiro is, in the first volume of the Kojiki (a three-volume history of ancient Japan), a fire god also known as Obuto. When he was born, he burned his mother, Nami Iya, killing her. Because she also gave birth to the six gods corresponding to metal, earth, water, and wood in the process of dying the Kagabikonoyashiro became connected to the five flows of the life force, also known as the five elements (wood, fire, earth, metal, and water) as the first important gods.

Van: A Sanskrit character that represent Tahagata of the Vajradhatu Mandala (the mandala is the Buddhist visual schema of the enlightened mind). But the character of van also represents water in the "earth, water, fire, wind, sky, and knowledge" of the Pillars of the Worship of Shugen which states, "the character of van is water, everything and everyone in the universe obeys water." In order to unleash the fog from the drink bought at the vending machine, the character van was recited.

Van Oon Tarak Kileek Aku: An Onmyoudou spell known widely by the name of Seman and used in a variety of ways. Originally they were the Sanskrit characters for Esoteric Buddhism's Five Buddhas of the Vajradhatu and were not related to common Onmyoudou. However, in Volume 4 of the Five Pages of the Earth God (Chijingoyou) it says, "the present four Buddhas will increase to five Buddhas, changing to consist of the Earth God of the five elements." In this way, the five Buddhas were arranged to correspond to the five elements. The five elements were the five life forces―wood, fire, earth, metal, and water―and the study of the flow of those life forces was the important task of the common Onmyou wizards. From the beginning, before the division of Shintoism and Buddhism in 1868 (the first year of the Meiji Era), Shintoism and Buddhism were jointly practiced everywhere. Before modern times, the Japanese openly incorporated a variety of religions and magic into their lives without concern. This single Onmyoudou spell that comes from the characters of Esoteric Buddhism gives us a glimpse of the history of those Japanese people.

Ryômen Sukuna no Kami: In the Nihonshoki, the reign of the 16th emperor, Ôsazaki no Mikoto, is recounted, and in the eleventh book, there is this entry: "In the Year 65, there was a man who came to the land of Hida, who said his name was Sukuna. Although he had but one body, he had two faces―one in front, and one on his back. Although he had knees, he had no heels. In his four hands, two wielded swords, while the other two carried bows. Because he refused to follow the orders of the Emperor, the warrior Rikuma Nekotakebu of Naniwa was sent to dispatch him. Sukuna fought back but was defeated and sealed away in a cave where a shrine was erected. Also known as 'Takano Uchi', the soldier who defeated Sukuna is well known for his military tactics". In this actual history of Ryômen no Sukuna, no mention is made of his size; it is unknown whether or not he is a giant. In the area of Hida, in Gifu Prefecture, Sukuna is considered a giant demon-god...and yet, the locals do not consider him to be a doer of evil.

Notable OBD victories:

Notable OBD losses:

Other: N/A