Power Spray says:
You may play this card during your opponent's turn when your opponent's Pokemon uses any Poke-Power. Prevent all effects of that Poke-Power. (This counts as that Pokemon using its Poke-power.)...
If your pokepower involves a coin flip like SF Infernape, does your opponent need to power spray it immediately, or can he wait to see the result of the flip? What it come down to is whether or not the coin flip is an "effect of that Poke-Power"
You may play this card during your opponent's turn when your opponent's Pokemon uses any Poke-Power. Prevent all effects of that Poke-Power. (This counts as that Pokemon using its Poke-power.)...
If your pokepower involves a coin flip like SF Infernape, does your opponent need to power spray it immediately, or can he wait to see the result of the flip? What it come down to is whether or not the coin flip is an "effect of that Poke-Power"