Ruling Unown G

[lubu11]

if i have Unown G attached to a poke whose attack goes somthing like "discard 2 fire energy" do i have to do that?

because it says "prevent all effects of attacks, excluding damage, done to that pokemon"

so is't "discard 2 fire energy" an "effects of attacks...done to that pokemon"?

 

[Lieutenant Houndoom]

Done to that Pokemon. From your opponent's attacks. Read carefully.

 

[Chairman Kaga]

Read carefully.

And check recent errata.

Once during your turn (before your attack), if Unown G is on your Bench, you may discard all cards attached to Unown G and attach Unown G to 1 of your Pokémon as a Pokémon Tool card. As long as Unown G is attached to a Pokémon, prevent all effects of attacks, excluding damage, done to that Pokémon by your opponent's Pokémon.