Nightmare(ナイトメア, Naitomea?, lit. Nightmare) or (悪夢, Akumu?, lit. Nightmare) is a recurring ability in the Final Fantasy series, having most commonly appeared in games taking place in Ivalice. It causes Sleep with 100% accuracy, and may also induce Doom.
Nightmare is a Blood Pact of Diabolos under the Ward category. It afflicts enemies in the area of effect with a special form of Sleep known informally as "nightmare" or "hypersleep"; unlike normal sleep, taking damage will not wake the slept creatures although healing will. The slept creatures also receive Bio status, causing them to take damage over time. It is considered a Dark-based ability that costs 42 MP and is accessible at level 29.
Like Diabolos's other blood pacts, this one is used by enemy Diabolos Avatars such as Diabolos Prime. When doing a Diabolos fight at the fight's original intended level, Nightmare is by far the worst danger that players will face. Even Diabolos's Astral Flow ability, Ruinous Omen, will result in fewer player deaths and mission failures than Nightmare. Stunning Diabolos whenever he readies Nightmare may easily mean the difference between failure and success.
[view·edit·purge]A nightmare is an unpleasant dream that can cause a strong emotional response from the mind, typically fear or horror, but also despair, anxiety and sadness. The dream may contain situations of danger, discomfort, psychological or physical terror. Sufferers often awaken in a state of distress and may be unable to return to sleep for a prolonged period. The word derives from the Old English "mare", a mythological demon or goblin who torments others with frightening dreams.
The (ナイトメア, naitomea?, lit. nightmare) spelling is consistently used when referring to Nightmare as a Diabolos ability, while the (悪夢, akumu?, lit. nightmare) spelling is reserved exclusively for Nightmare as a Lucavi/Assassin ability.