As long as Roselia has any React Energy cards attached to it, remove 1 damage counter from each of your Pokémon (excluding Pokémon-ex) that has any React Energy cards attached to it between turns. You can't use more than 1 Reactive Aroma Poké-Body each turn.
Switch 1 of your opponent's Benched Pokémon with 1 of the Defending Pokémon. Your opponent chooses the Defending Pokémon to switch. The new Defending Pokémon is now Poisoned.