I've a deck whit two Chansey Neo Destiny and one Pinsir Aquapolis
They boot have an attack that says "Flip 2 coins. If either of them is tails, this attack does nothing. "
Now, I'm Italian and in the Italian translation they sounds like "whit two tails this attack does nothing" that means you need just one head to have success.
My friends (and a post on a doubtable nonofficial Italian site) say that the translation is wrong because in that way this cards are too much strong (basic pokemon - damage 80 and 90).
They say that "either of them" means that you need two heads to perform the attack.
What's the true?