Nightmare's Army

Nightmare's Army was an army of X-creatures that Nightmare has made to compete with the Good Guys and Darktan's Army. Pretty much any evil X-antibody that isn't in Darktan's Army is automatically in here. They were disbanded in the aftermath of the Nightmare Epic, following Nightmar's Death, although Xorai has regrouped many of them.

Leaders

 * Nightmare (former, deceased)
 * Xorai (Current)

Spreaders

 * Lizlord (Former)
 * IcE (Former)
 * Metal Explorer (Former)
 * Zone (Former, traitor)

Great Minions

 * Darktan X
 * FredX
 * Xellina
 * KwikXilver
 * Xorai
 * Robert X

Fine Minions

 * Gargantuan
 * Tails X
 * Degeneration X
 * Manny X
 * Sam Rudi X
 * Mandy X
 * Ajax Kwiksilver (until reformation)

Average Minions

 * Herbert P. Bear Xquire
 * Speeddasher X

Minor Minions

 * The X-Kong
 * Xplorer
 * Director Xenny
 * MectriXctic
 * Chuck X
 * X max1
 * WinXton

Allies

 * Xorai's Army (Merged later on)

Nightmare Epic
During the Nightmare Epic, Nightmare and Zone mind controlled all of the members of this army, as well as most of Darktan's Army and captured X-antibodies, with the exception fo Lizlord and IcE. After the battle, Nightmare and many members of the army were killed, (the remaining would have no loyalty to Nightmare anyhow). A new army was formed by the forces of Xorai, Darktan X, and Robert X, led by Xorai.

Trivia

 * Flywish and his army are also fighting them.
 * He even has some X-Creatures in his army.