Disables the target’s last used move for 1-8 turns.
Disables the target’s last used move, preventing its use for 4–7 turns, selected at random, or until the target leaves the field. If the target hasn’t used a move since entering the field, if it tried to use a move this turn and failed, if its last used move has 0 PP remaining, or if it already has a move disabled, this move will fail.
Move descriptions from different games
"Disables the foe's most recent move."
"Disables the foe's most recent move."
"Psychically disables one of the foe’s moves."
"Psychically disables one of the foe’s moves."
"For a few turns, it prevents the foe from using the move it last used."
"For several turns, this move prevents the foe from using the move it last used."
"For several turns, this move prevents the foe from using the move it last used."
"For several turns, this move prevents the foe from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, this move prevents the target from using the move it last used."
"For four turns, the target will be unable to use whichever move it last used."
How move stats changed over generations
Detailed effect when used in contests
Attempts to make all following Pokémon nervous (and thus unable to appeal).
"Makes all Pokémon after the user nervous."
Detailed effect when used in super contests
"Prevents the Voltage from going down in the same turn."