Pokémon Diamond Version, Pearl Version, and Platinum Version - Moves that use other moves
The moves Assist, Copycat, Me First, Metronome, Mirror Move, Nature Power, and Sleep Talk can use other moves. For all these moves, the move being used is not considered the "last move used" during the user’s attack segment; unless noted otherwise, the move being used can be used even if it can’t be used or chosen for use because of an effect.
Moves used this way have no target; thus they will target a random opposing Pokémon if the move used has a range of "single Pokémon except user", "no particular target", "opposing Pokémon selected at random", or "single opposing Pokémon".