If Celebi Star would be Knocked Out by damage from an opponent's attack, you may flip a coin. If heads, Celebi Star is not Knocked Out, discard all cards attached to Celebi Star, and put Celebi Star on the bottom of your deck.

Count the amount of Energy attached to Celebi Star. Put that many damage counters on 1 of your opponent's Pokémon.

You can't have more than 1 Pokémon Star in your deck.