Nightmare: Move Details & Pokémon That Learn It Name Nightmare Name(DE) Nachtmahr Name(FR) Cauchemar Name(JP) あくむ (Akumu) Type Ghost Category Special Power 0 Accuracy 100 PP 15 TM 0 Probability 0 Description The sleeping opponent loses 25% of its max HP each turn. Pokemon with Nightmare GastlyHaunterGengarMega GengarHypnoDarkraiMunna