Saviors who are able to use Black Magic has mana, the power source required to cast Dark Arts. In the midst of casting a spell, a Kuroma absorbs the natural powers from their surroundings to increase their mana to cast the chosen spell; then the spell is then written in midair before the caster. All Dark Arts are split into different groups and strengths based on the number of lines that the spell in question as such as the "Step One Dark Arts: White Breath" has one line and "Step Three Dark Arts: Frozen Shade" has three lines.
Dark Arts are more based on causing destruction and have little spells, which deal with healing wounds, unlike a Shirogane. However, due to the natural opposition between both mana and prana, if a Kuroma injects their mana into a Shirogane, then their prana would react to the "invasion" and cause the prana of a Shirogane would activate their recuperative powers.
There are two individuals who're able to use powerful Dark Magics and incantations, which has enough power to be able to cause enough destruction to force maps to be redrawn referred to as "Grimoire Holders". Two of these spells are Step Thirteen Dark Arts: Celestial Crusaders and Ouroboros
Blaze Storm (
Black Gehenna (
The Abyss (
White Breath (
Freezing Shade (
Dreadful Blizzard (
Blizzard Specter (
Bright White Frost (
Frost Giant (
Frost Wyrm (
Hydro Blast (
Hydro Serpent (
Lightning (稲妻, Inazuma): Step One
Four-way Lighting (四筋の稲妻, Shi Suji no Inazuma): Step Two
Blitz-ball (狂乱する球雷, Kyōran Suru Kyū Kaminari): Step Three
Thunder Spirit (雷雲の精霊, Raiun no Seirei): Step Five
Thunderstorm Helix (稲妻の螺旋, Inazuma no Rasen): Step Eight
Thunderbolt Dragon (稲妻の魔竜, Inazuma no Maryū): Step Nine
Celestial Crusaders (天界十字軍, Tenkai Jūjigun): Step Thirteen
Breeze Blade (引き裂く突風, Hikisaku Goppū): Step One
Breeze Mace (吠えたける強風, Hoe Takeru Kyōfū): Step Two
Breeze Shamshir (切り裂く風, Kirisaku Kaze): Step Three
Tempest Gin (嵐の精霊, Arashi no Seirei: Step Five
Mind Swords (精神の剣, Seishin no Ken): This is a dark art, where the caster summons swords to attack mind of one's enemies.
Mind Thrust (精神の槍, Seishin no Yari): This is a dark that, where the creates a force that targets ones' spiritual strength. In the anime, it took form as a tornado.
Bind (束縛, Sokubaku): This is a dark art, which binds one's opponent in chains.
Spirit Strings (魂の紐, Tamashī no Himo): A dark art, where the caster creates half-transparent strings, although it isn't as durable as «Bind», it has characteristics that make them last longer and extends as far as required. Based on the user, it can last for almost an hour without disappearing.
Sleep Near Death (万の眠り, Man'nonemuri): This is a dark art, where the caster puts their target into a deep sleep. Morohha used this against Elena Arshavina.
Hex (護法印, Gohō Shirushi): This is a dark art, where the caster uses a basic defensive spell. Although it is useful to the caster, it has low power and it doesn't have much defensive power against different attributes, Hex won't have many effects if used wrongly.
Blue Hex (青の護法印, Ao no Gohō Shirushi): This is a defensive dark art, where the caster creates blue barriers all around themselves and others. Blue Hex is most effective against wind and water attributes, as such, it doesn't work against flames.
Red Hex (赤の護法印, Aka no Gohō Shirushi): This is a defensive dark art, where the caster creates red barriers all around themselves and others. Red Hex is most effective against fire and lightning, but can't defend against physical attacks or other kinds of attributes.
Eija Grid (上天の障壁, Jōten no Shōheki): This is a high-level defensive dark art, where the user creates a wall against every form of element in the skies. Eija Grid can't be used by people below B or A rank.
Healing (傷跡の治療, Kizuato no Chiryō): This is a supportive dark art, where the user heals a target by writing magic runes on their skin. In anime, it has been replaced by healing by touching with a hand.
Decrease Weight (羽毫の体現, Hanegō no Taigen): This is a Dark Art, where the caster decreases their weight to near zero and allows them to fly/float.
Phantasmal Vision (幻影の像, Gen'ei no Zō): This is a dark art, where the caster creates an optical illusion i.e. clones of themselves. The illusions are made by one's image, so if it's strong then one can create any kind of illusion.
Magiscope (遥か見, Harukami): This is a dark art, where the caster increases ones' vision, making them being able to see from far away distances. Magiscope is the same as «Tengentsu». For those with higher mana, the caster can see up to one kilometers ahead, while S Ranks can easily see up to five or more easily.
Suppression Field (抑制の場, Yokusei no Ba): This is a defensive dark art, where the caster creates a barrier able to weak beings who don't have a soul such as the lightning beasts of Vasilisa.
Moonlight Javelin (月銀の槍, Tsuki Gin no Yari): This is a dark art, where the caster shoots a spear that shines like moonlight toward their target. Although it has great flight distance, its accuracy isn't as high.
- In the anime, the Kuroma writes and chants faster than humanly possible, and when the chant is finished, it hangs in front of them in ethereal letters, which he/she flicks with their finger before proclaiming the name of the move before launching it.