If you have Plusle in play, whenever your opponent attaches an Energy card from their hand to 1 of their Pokémon, put 2 damage counters on that Pokémon. You can't apply more than 1 Buddy Pulse Ability at a time.
I ordered 3 tins, and they made sure to send 3 different designs, thanks! Sadly 1 tin did arrive with a dent in it. It also took almost a week to be shipped.