Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.
Time Reversal
Once during your turn, when you put Celebi ex from your hand onto your Bench, you may search your discard pile for a card, show it to your opponent, and put it on top of your deck.
Psychic Shield
Damage: 30
Prevent all effects of attacks, including damage, done to Celebi ex by your opponent's Pokémon