Nemesis (being)

Nemesis is a being of unknown origin, who is cursed with being permanently invisible. This forces him to wear a cloak at all times to remain slightly visible, but also gives him an advantage in rock-paper-scissors.

During a battle, he suddenly appeared, claiming to be the lord of darkness and hate. He summoned a hundred skeletons with armour and weapons, and gave them the power to control darkness. These skeletons were quickly defeated, and Nemesis retreated to parts unknown.

Many years after the battle, he was summoned by Space Pirate Captain Eurobeat on Saskana to fight Mazkertis for the fate of the universe.