Its defenders are Nightmare forms: wins here drop Nightmare Shards and, rarely, a Nightmare Pokémon. See The Nightmare World.
Defenders
| Pokémon | Types | Level | |
|---|---|---|---|
| Nightmare Cloyster | waterice | 652 | |
| Nightmare Walrein | icewater | 653 | |
| Nightmare Empoleon | watersteel | 654 | |
| Nightmare Swampert | waterground | 655 | |
| Nightmare Mamoswine | iceground | 656 |
Play Nightmare Twist Mountain now
Nearby maps in Nightmare Abyss
Nightmare Lostlorn Forest · Nightmare Route 6 · Nightmare Chargestone Cave · Nightmare Moor of Icirrus · Nightmare Undella Bay · Hollow of Lost Souls