Other known variants
x2Secrete PoisonDuring your opponent's next turn, whenever your opponent's attack damages Kakuna (even if Kakuna is Knocked Out), your opponent's Active Pokémon is now Poisoned and Kakuna does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
Although it is a cocoon, it can move a little. It can extend its poison barb if it is attacked.
In Team Play, when an attack like Kakuna's "Secrete Poison" or "Agility" specifies the phrase "during your opponent's next turn", does that count for both opponents or do you have to choose one of the opponents to have the effect during their turn only?
You would have to specify which opponent.