Trunks, Rough Life (BT30-130) - Three Glorious Fighters

[Auto] When this card is played, look at up to 3 cards from the top of your deck, add up to 1 white "Saiyan" card to your hand, then place the remaining cards at the bottom of their owner's deck in any order.
[Activate:Main] [Limit 1] If your Leader is a white "Pan" card, you discard 1 card from your hand, and you switch this card to Hidden Mode : During this turn, the next time you activate an [Activate:Main] skill on a white "Son Goku : GT" or "Pan" card from your hand, reduce the skill cost by