As long as Plusle is your Active Pokémon, whenever your other Active Pokémon, if any, attacks, you may use Cheer On after the first attack (you still need the necessary Energy to use Cheer On). You can't use Cheer On more than once in this way even if your other Active Pokémon has the Chain of Events Poké-Body.
The Pokémon Company International is not responsible for the content of any linked website that is not operated by The Pokémon Company International. Please note that these websites' privacy policies and security practices may differ from The Pokémon Company International's standards.
Would you like to notify the Pokemon.com staff that you believe "" is an inappropriate screen name?
Your request could not be completed. Please try again. If the problem persists, please contact Customer Support.