Melagaland

is the form Chaos Melascula and Chaos Galand gain after they fused together using a Chaos Staff in a last attempt to defeat the Four Knights of Apocalypse.

Appearance
Melagaland is a large abomination that combines many of their traits. The "head" of the monster is composed of Melascula's torso with a snake head; the upper torso is composed of Galand face covering mostly the chest and Melascula's human face on the waist right side. The arms, the lower part of the torso and legs are Galand's. It also has Melascula's snake-like tail.

Personality
Melagaland shown no emotions or traits of its fusees' personalities at first, seeming to be only a puppet following King Arthur's orders of destroying the Four Knights of the Apocalypse and their allies.

However, as the fight progressed, it started showing signs of personality, acting really arrogant and cruel, while belittling their enemies and not believing in Isolde's love that powered-up her attacks. It was also shown to be a coward when, after being overpowered by Tristan, started pleading him to not kill it.

Chaos in Liones arc
Melagaland is created when Melascula uses a Chaos Staff to fuse her and Galand together as a final attempt to defeat the Four Knights of Apocalypse.

Melagaland approaches the Four Knights as Percival, Tristan and Gawain attack it together at the same time, with their attacks doing nothing to it. Despite being caught in Gawain's Sunshine Burst, Melagaland almost gets its hands into Percival if not for Donny's Telekinesis pushing it away.

Melagaland attacks Tristan and Percival in the air with its darkness, claiming that its mission is to finish them off. The two try to charge into it, but inadvertently end up crashing into each other, knocking each other out. When Nasiens and Hendrickson manage to identify and remove the effect of its neurotoxin, Melagaland attempts to eliminate them, but is stopped by Dreyfus and Isolde. The other Holy Knights join them as well, but Melagaland manages to mortally wound them all. Percival's mini golems heal them and then Percival manages to hurt Melagaland with Hope, but Melagaland still catches Percival with its tail. Isolde manages to free him before Melagaland kills him, to which Melagaland attacks her, subtracting meaning from the source of her power, however Tristan manages to save Isolde from being crushed by Melagaland.

Melagaland is soon overcome by Tristan's demonic power, who manages to rip its face off and pierce its body with darkness. Melagaland then invokes the Meifu no Bansan, but Tristan removes the technique without issue and proceeds to rip off Melagaland's snake head despite saying that he agrees to the plea to stop, stating that he is unable to control himself in that state. Tristan eventually wipes out the rest of Melagaland with his swords.

Abilities

 * Melagaland is able to generate a slow-acting neurotoxin similar to that of demon snakes, which gradually reduce the opponent's sense of direction, accuracy and evasion.
 * Melagaland summons hands that emerge from the ground and drag their enemies into the afterlife.

Weapons

 * Chaos Halberd: Melascula's Chaos Staff transform into a halberd-like weapon, similar to the one Galand possessed.
 * Melagaland jumps high into the air before piercing the ground with a succession of deadly strikes delivered with their spear. The force of the attack shatters the ground beneath them, causing wide spread devastation to the surrounding area.

Trivia

 * For unknown reasons, after Melagaland is killed by Tristan, their bodies didn't unfuse like it happened in the other cases.