Elekid Neo Genesis / neo1-22

If this Baby Pokémon is your Active Pokémon and your opponent tries to attack, your opponent flips a coin (before doing anything required in order to use that attack). If tails, your opponent's turn ends without an attack.

Once during your turn (before your attack), you may flip a coin. If heads, do 20 damage to your opponent's Active Pokémon. (Apply Weakness and Resistance.) Either way, this ends your turn. This power can't be used if Elekid is Asleep, Confused, or Paralyzed.