The X-EX01 Gundam Calibarn is Suletta Mercury's final-battle mobile suit from Mobile Suit Gundam: The Witch from Mercury (Ad Stella 122). An ancient GUND-ARM unit with an extremely high maximum Permet Score, originally tied to Prospera Mercury's research team. When Suletta pilots it in the climax, it reaches catastrophic Permet Score levels, making it one of the most powerful GUND-ARM machines in existence.

The HG kit reproduces the iridescent glow of the chest shell unit and antenna by in-mould moulding. The GUND-BIT can be displayed in combination with two sets of the Witch from Mercury Weapon Display Base (sold separately). A long-barrelled variable rod rifle is included as the main weapon. A white escutcheon (shield) is attached, along with a pedestal for main-body display.

Set contents: beam rifle x 1, shield x 1 type, beam saber x 2, display pedestal x 1, seal x 1.
Model number: X-EX01
Faction: Dawn of Fold
Pilot: Suletta Mercury (final battle)
Era: Ad Stella 122
System: GUND Format, ancient GUND-ARM with very high Permet Score ceiling
Source: Mobile Suit Gundam: The Witch from Mercury (TV anime, 2022 to 2023)