Poison Barb (Sun & Moon 124)

Rules

Attach a Pokémon Tool to 1 of your Pokémon that doesn't already have a Pokémon Tool attached to it.

If the Pokémon this card is attached to is your Active Pokémon and is damaged by an opponent's attack (even if this Pokémon is Knocked Out), the Attacking Pokémon is now Poisoned.

You may play as many Item cards as you like during your turn (before your attack).