Island Challenge Amulet
The Pokemon-GX or Pokemon-EX this card is attached to gets -100 HP, and when it is Knocked Out by damage from an opponent's attack, that player takes 1 fewer Prize card.
Card rule
Attach a Pokémon Tool to 1 of your Pokémon that doesn't already have a Pokémon Tool attached to it.
Card rule
You may play as many Item cards as you like during your turn (before your attack).
Cosmic Eclipse