There is one Nemesis monster for each element and two additional variants of each of those monsters (for a total of 27 Nemesis monsters). The variants have different stats and a few different skills. The first variant of the monster has skills with the element that it is weak against. For example, the first variant of the dark Nemesis monster has light skills. The second variant of the monster has skills with the element that the first variant is weak against. Continuing the example, the second variant of the dark Nemesis monster has metal skills.
See all Nemesis monsters.