Giovanni & Devolving

[DarKlego]

Suppose I have a Giovanni pokemon in play, and play the Giovanni trainer card. I evolve the pokemon, then manage to devolve it. Could I evolve it again that turn? I found the following ruling in the Compendium, but it didn't seem clear to me if it still applied if the Giovanni trainer was played before the pokemon devolved:

Q. Would the Giovanni trainer card allow a just-devolved Pokémon to evolve again?
A. Yes. (Jul 11, 2002 WotC Chat, Q37)

 

[surfingpika]

As I seen the card, I think that it's a contionious effect. No matter when you play it in your turn, it's effects can still be used.