Vortex Warriors

Witchelny takes its name from the setting of Magical Witches, a 1998 Bandai line of grimoire-shaped virtual pets that Digimon designer Watanabe Kenji worked on.

In Witchelny, sorcery is a high-level programming language. Four clans each master an element (Earthlin of earth, Aquary of water, Eneruge of flame, Baluluna of wind) and together they founded the Brocken Magical Academy.

Unlike Iliad, which sits on a different server of the network, Witchelny is officially the Digital World of another dimension, one of many Layers. Crossing over is dimensional travel, as Wizardmon, Witchelny's famous native, did to train in fire and earth magic.

MedievalGallantmon is the form Gallantmon takes in Witchelny. There it leads the Vortex Warriors as the Whirlwind General, yet in its Gallantmon form it is counted as a Royal Knight and not as a Vortex Warrior, despite being the same individual.

In the manga Digimon Chronicle, Gallantmon takes its Medieval form outside Witchelny thanks to a Forest Leaf, and rather than eliminating the traveling duo Yuuji and Ryudamon, it sets them a trial to test the power of the X-Antibody.

The Vortex Warriors only recently came together as a group, via the card game's Vortex Warriors trait (ST-18 Guardian Vortex) and the Digimon Liberator web story, where Kazama Shoto's partner Pteromon takes the forms of Zephagamon, GrandGalemon and Vortexdramon.