You can't have more than 1 Shining Celebi in your deck
Remove a number of damage counters from 1 of your Benched Pokémon equal to the number of Energy cards attached to Shining Celebi. If the Pokémon has fewer damage counters than that, remove all of them.
Flip a number of coins equal to the number of Energy attached to the Defending Pokémon. If you get 1 or more heads, the Defending Pokémon is now Asleep, Confused, or Poisoned (your choice).