Gundam Vual (Gundam Astaroth's arch enemy is) a jet-black mobile suit from the side story Mobile Suit Gundam Iron-Blooded Orphans: Moonlight. 

Gundam Vual is available as a model kit that can combine with other HG Iron-Blooded Orphans series model kits. The kit includes a backpack with transformative gimmicks that reference the Astaroth Origin.

Accessories include:

Manipulators (Hands) 

     -Multipurpose weapon-holding (1 pair)

    - Angled/Shotgun-holding (right)

Spike Shield

Mining Hammer

Storage adapter

Glaive

Round Shield