The official Japanese Pokemon Twitter account has revealed a new Tool card, Burst Balloon. Thanks goes to Michael S. for the translation!
Burst Balloon – Trainer
Pokemon Tool: Attach a Pokemon Tool to 1 of your Pokemon that doesn’t already have a Pokemon Tool attached to it.
If this card is attached to a Pokemon, at the end of your opponent’s turn, discard this card.
When the Pokemon this card is attached to is damaged by an opponent’s Pokemon’s attack, put 6 damage counters on the attacking Pokemon.
You may play as many Item cards as you like during your turn (before your attack).