Pokémon Power: Mind Games
Whenever your opponent plays a Trainer card, you may flip a coin. If heads, that card does nothing. Put it on top of your opponent’s deck. This power can’t be used if Slowking is Asleep, Confused, or Paralyzed.
[P][P][P] Mind Blast: 20+
Flip a coin. If heads, this attack does 20 damage plus 10 more damage and the Defending Pokémon is now Confused. If tails, this attack does 20 damage.
When its head was bitten, toxins entered Slowpoke’s head and unlocked an extraordinary power.