You can't use this attack unless the Defending Pokémon is Asleep.
Because of its ability to slip through block walls, it is said to be from another dimension.
Type
Attributes
Expansion
Number
Rarity
Release
Regulation
Formats
Energy Types
Species
HP
Retreat
Weakness
Resistance
Stage
Evolves From
Artist
You can't use this attack unless the Defending Pokémon is Asleep.
The Defending Pokémon is now Asleep.