Abilities » Magic Room
If Gothitelle is Active, does its "Magic Room" Ability prevent the opponent from playing older pre-BW Trainer cards that don't say Item on them?
Trainer cards from Diamond & Pearl through Call of Legends should be considered "Trainer–Item" cards. So the older Trainers would be blocked, but not Supporters or Stadiums.
Source: Emerging Powers FAQ (2011-09-01), PUI Rules Team (2011-09-01)
Abilities » Conductivity | Abilities » Self-Generation
If Pachirisu's "Self-Generation" Poke-POWER is used to attach two Lightning Energy to Pachirisu, and the opponent has 4 Ampharos Primes with "Conductivity" in play, what is the result?
Pachirisu would be have 8 damage counters placed on it due to Conductivity.
Source: PUI Rules Team (2011-06-09)
Abilities » CURE | Errata » CURE
Unown's "CURE" Poke-POWER should read, "Once during your turn, when you put Unown from your hand onto your Bench, you may remove all Special Conditions from your Active Pokémon." Use of this Poke-POWER is optional.
Source: TPCi Announcement (2011-04-11), PUI Rules Team (2011-05-05)
Abilities » Damage Swap
Can I use Reuniclus' "Damage Swap" ability to move all of my damage counters onto one Pokemon and then knock it out?
You can only move one damage counter at a time with Damage Swap (even though you can re-use the ability many times), so as soon as the number of damage counters on the Pokemon equals its HP, it would be KO'd immediately. In other words, you cannot move ten damage counters onto a Pokemon with only 50 HP and then knock it out.
Source: Black & White FAQ (2011-04-28), PUI Rules Team (2011-04-28)
Abilities » Royal Heal
Do I have to use Serperior's "Royal Heal" ability if I don't want to?
Royal Heal is not an optional ability. You must use this ability at some point in between turns.
Source: Black & White FAQ (2011-04-28), PUI Rules Team (2011-04-28)
Abilities » Portrait
If I use Smeargle's "Portrait" Poke-POWER and find "Engineer's Adjustments" in my opponent's hand, do I have to use it if I have an Energy card in my hand?
Yes, if you have an energy card and you choose Engineer's Adjustments, you have to discard the energy and draw 4 cards.
Source: PUI Rules Team (2010-12-09), PUI Rules Team (2011-03-17)
Abilities » Trick Reveal
If I don't have any cards in my hand, can I use my Mr. Mime's "Trick Reveal" Poke-POWER to look at my opponent's hand?
Yes. You still have a hand, it just has no cards in it. Show your (empty) hand when your opponent shows their hand.
Source: Call of Legends FAQ (2011-02-10), PUI Rules Team (2011-02-10)
Abilities » Portrait
What happens if I use Smeargle's "Portrait" Poke-POWER, but I cannot satisfy the conditions of any of my opponent's Supporters?
You get to look at the opponent's hand, and that's all.
Source: PUI Rules Team (2010-12-09)
Abilities » Portrait
When using Smeargle's "Portrait" Poke-POWER, can I choose a Supporter that will have no effect?
You cannot pick a supporter you couldn't normally use; for example you can't choose "Twins" unless you are behind on prizes at that time, nor Aaron's Collection if you don't have anything in your Discard Pile. You would have to choose a different Supporter if one is available.
Source: PUI Rules Team (2010-12-09)
Abilities » Fighting Tag
Can I use Machamp's "Fighting Tag" Poke-POWER to switch him with the Active Pokemon if the current Active has no Fighting Energy attached to it?
No, if you don't move any Fighting energy you cannot switch Machamp with the Active Pokemon.
Source: PUI Rules Team (2010-11-18)