Walgner

Walgner (ワルグナ) is a devil who serves Nacht Faust, the vice-captain of the Clover Kingdom's Black Bull squad of the Magic Knights.

Appearance
As a devil familiar, Walgner appears as a small, dark-colored figure with horns, wings, and a tail.

When merged with Shadow Magic, Walgner appears as a large, black figure with black horns and a red, rooster-shaped mask.

Biography
After Nacht Faust interrupts a captains meeting, he summons four masked beasts to stop the captains from attacking him, with Walgner holding back Charlotte Roselei. After Julius Novachrono vouches for Nacht, the captains relax and the beasts disappear.

When Asta defeats Liebe and insists on forming a contract of equals with the devil, Walgner appears alongside Gimodelo and the other devils. The devils cling to Nacht's head and shoulders as Nacht enters the circle and compliments Asta's choice. Walgner and the other devils disappear when Gimodelo merges with Nacht to continue Asta and Liebe's training.

After Nacht admits defeat, he leaves behind Gimodelo to continue Asta and Liebe's training since their union needs more work. The devil is terrified of the possibly lethal attack again, and Nacht's other devils comfort Gimodelo.

During the invasion of the Spade Kingdom, Nacht sends Walgner to accompany Ralph Niaflem for a meeting with the Resistance in the castle town. After the first gate opens, Walgner returns to Nacht, so they merge and use Walgner's characteristic, Crow, to paralyze Naamah and Lilith in order to drag them to another part of the castle. Nacht then merges with Plumede and traps the devils in Dark Prison Hunting Ground.

Abilities

 * Crow (鳴声): When Walgner assimilates with Nacht via Unite Mode: Gallus, Nacht can issue a loud rooster crow that momentarily paralyzes those who hear it.