If an opponent's attack would Knock Out Celebi, flip a coin. If heads, Celebi isn't Knocked Out and you shuffle it and all cards attached to it into your deck. This power doesn't work if Celebi is already Asleep, Confused, or Paralyzed.

Psychic Damage

Flip 3 coins. For each heads, put 1 damage counter on the Defending Pokémon.