Youjutsu (lit. "Demon Arts") is a technique used in High School DxD.
Youjutsu is the Youkai form of spellcraft and is mainly unique to the Youkai.
Kuroka demonstrated the ability to produce a poisonous mist that is effective against specific races such as Youkai and Devils, but is ineffective against Dragons or Dragon-type Sacred Gear possessors, such as Issei Hyoudou due to his possession of the Boosted Gear. Kuroka later refined her poison ability, and by using a Bikou as a guinea pig; was able to create a special poison mist which was effective even against Sun Wukong; a former Youkai turned Buddha, even after he dispelled it with his magic.
Youjutsu users have shown the ability to create illusions to confuse and disorient their opponents. Due to their unique nature, an average opponent will be unable to discern the real from the fake due to them taking on the physical appearance of the user and wearing the same aura, unless they possess abilities that can detect the flow of the spirit such as Senjutsu.
Youjutsu users have also shown to be able to use Youjutsu to create and control various elements such as the original and current Sha Wujing creating and controlling water.
|High School DxD|
|Abilities||Sacred Gear • Demonic Power • Holy Power • Magic • Senjutsu (Kasha) • Youjutsu • Touki • Fox Fire • Fire Breath • Outrage|
|Abilities by Species|
|Human||Sacred Gear • Magic|
|Dragon||Fire Breath • Outrage|
|Nekomata||Senjutsu (Kasha) • Youjutsu|