Trainers » Judge
What happens if a player has no hand when "Judge" is played?
The player shuffles his or her deck and draws 4 cards (or as many cards as possible if the deck contains less than 4 cards).
Source: Unleashed FAQ (2010-05-13), PUI Rules Team (2010-05-13)
Trainers » Dual Ball
If I flip two heads with "Dual Ball" can I choose both halves of a LEGEND Pokemon?
No, because LEGEND are not Basic Pokemon, you cannot choose them with Dual Ball.
Source: Unleashed FAQ (2010-05-13), PUI Rules Team (2010-05-13)
Trainers » Engineer's Adjustments
If I don't discard an energy, can I play "Engineer's Adjustments"?
No. You must be able to discard an energy to play the card.
Source: Unleashed FAQ (2010-05-13), PUI Rules Team (2010-05-13)
Trainers » Energy Returner
If I have less than 4 energy cards in my discard pile, can I play "Energy Returner"?
Only if you have at least one energy in your discard. If you have less than 4 energy, return all of them to your deck.
Source: Unleashed FAQ (2010-05-13), PUI Rules Team (2010-05-13)
Trainers » Moomoo Milk
Do I need to have a current version of "Moomoo Milk" outside my deck if I'm playing the older versions of the card in Modified Format?
Technically speaking the "Heart Gold/Soul Silver" version is a different card and it does not do the same thing as the older versions used to (it removes more damage counters now). So you cannot play "Moo-Moo Milk" from "Neo Genesis" nor "Expedition" in the current 2009-2010 Modified Format.
Source: PUI Rules Team (2010-02-18)
Trainers » Fisherman
When I use the Supporter "Fisherman," can I put less than 4 Basic Energy cards from my discard pile into my hand?
If you have 4 or more Basic Energy cards in the discard pile you must put exactly 4 of them into your hand. But if there are less than 4 Basic Energy cards in the discard pile, you must take them all.
Source: HeartGold & SoulSilver FAQ (2010-02-11), PUI Rules Team (2010-02-11)
Trainers » Copycat
Can I play the Supporter "Copycat" when it's the only card in my hand?
Yes, you can. Shuffle your deck, then draw cards equal to the number of cards in your opponent's hand.
Source: HeartGold & SoulSilver FAQ (2010-02-11), PUI Rules Team (2010-02-11)
Gameplay » LEGEND Pokemon | Trainers » Pokemon Collector
Can I use "Pokemon Collector" to choose Pokemon LEGEND cards as part of the 3 Basic Pokemon I search for in my deck?
No, because Pokemon Collector only lets you choose Basic Pokemon. Pokemon LEGEND are considered "Unevolved Pokemon" when in play, but they are not considered "Basic Pokemon".
Source: HeartGold & SoulSilver FAQ (2010-02-11), PUI Rules Team (2010-02-11)
Trainers » Copycat
Can I use the Supporter "Copycat" when my opponent has no cards in his or her hand?
Yes, you can. Shuffle your hand into your deck, but don't draw any cards.
Source: HeartGold & SoulSilver FAQ (2010-02-11), PUI Rules Team (2010-02-11)
Gameplay » LEGEND Pokemon | Trainers » Poke Ball
Can I use cards that search for a Pokemon, like "Bebe's Search" or "Poke Ball" to get a Pokemon LEGEND card from my deck?
Any effect that lets you search your deck or discard pile or do something from your hand with "a Pokemon" will let you use that effect on one half of a Pokemon LEGEND set, but not both halves.
Source: HeartGold & SoulSilver FAQ (2010-02-11), PUI Rules Team (2010-02-11)