Each player can't have more than 4 Benched Pokémon. If a player has 5 or more Benched Pokémon, they discard Benched Pokémon until they have 4 Pokémon on the Bench. The player who played this card discards first. If more than one effect changes the number of Benched Pokémon allowed, use the smaller number.
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.