aura (sousou no frieren)
Sousou no Frieren character.
Aura is one of the Seven Sages of Destruction directly serving the Demon King. Using her signature magic, Azerilyse (Subjugation magic), she weighs the mana of her opponent's soul as well as hers own on her magic scales, which grants the soul with more mana complete control over the loser's body.
She is overpowered by Frieren and ordered to kill herself, which she does by decapitation using her own sword to cut her neck off.
Example
