If I use Gladion and choose to put Jirachi {*} into my hand, can I use Jirachi {*}'s "Wish Upon a Star" Ability?
Sorry, but Wish Upon a Star only triggers when you are taking it as a face-down prize card, not when you are trading it with another card.
Source: TPCi Rules Team (2018-08-02)
What are the rules for using Banette GX's "Shady Move" Ability?
You can move 1 damage counter from any Pokemon in play to another Pokemon in play; it can be different player's Pokemon or it can be the same player's Pokemon (either you or your opponent).
Source: Celestial Storm FAQ (2018-07-20), TPCi Rules Team (2018-08-02)
If there is more than one Banette GX in play can the player perform "Shady Move" more than once (i.e. perform Shady Move with active, then retreat, switch, etc., perform it again with the new active)?
Yes, you could do that. However, going to the bench does not allow the same Banette GX to do Shady Move again; you are limited to one Shady Move per Banette GX per turn, assuming you can get them into the active slot.
Source: Celestial Storm FAQ (2018-07-20), TPCi Rules Team (2018-08-02)
If you move Metagross with the "Extend" Ability to your bench after playing Steven's Resolve, will your turn immediately end?
No, Extend only prevents your turn from ending as a result of playing Steven's Resolve, after which your turn simply continues as normal.
Source: Celestial Storm FAQ (2018-07-20), TPCi Rules Team (2018-08-02)
Can Choice Band be used to get around Mr.Mime GX's "Magic Evens" Ability that blocks even amounts of damage?
Yes, the Choice Band and all other effects that may adjust the attack total are factored into the amount of damage being done before Mr.Mime GX's Ability is checked.
Source: Celestial Storm FAQ (2018-07-20), TPCi Rules Team (2018-08-02)
Say a player announced "double Afterburner" for his two Typhlosions in play. However his Discard Pile only has one Fire Energy card for him to use. Does that mean his second "Afterburner" Poke-POWER is used up, or can he use it later in the turn since nothing happened for the second one?
Since you cannot use an Ability for no effect, if the player only has one Fire Energy card in the Discard Pile the first Afterburner Poke-POWER may be used but the second cannot. So since it is not used up the player could use the second one later during the turn if a Fire Energy card somehow ends up in the Discard Pile.
Source: TPCi Rules Team (2012-01-12), TPCi Rules Team (2018-07-26)
Does Mewtwo's "Pressure" Ability block all of Tapu Koko's "Flying Flip" Attack's damage, even to the bench?
Pressure says, "your opponent's Active Pokemon's attacks do 20 less damage." Since it does not specifically designate Active or Benched Pokemon it reduces damage by -20 to each Pokemon that would be damaged by the attack.
Source: TPCi Rules Team (2018-07-26)
I have 3 Pokemon on my Bench, and 1 of them has the "Omega Barrier" Ancient Trait. My opponent plays Cyrus {*}, and I choose to keep the 2 Pokemon that don't have "Omega Barrier". Does the Pokemon with "Omega Barrier" get shuffled into my deck?
Yes, it does. The effect of Cyrus {*} is on the player, not on the Pokemon with Omega Barrier.
Source: TPCi Rules Team (2018-05-31)
When can I use Scatterbug's "Abnormal Outbreak" Ability?
It's pretty clear. If you are not taking the first turn of the game, then when you get your first turn (i.e. the second turn of the game) you may use Abnormal Outbreak. This is the only turn of the game when this Ability may be used.
Source: Forbidden Light FAQ (2018-04-20), TPCi Rules Team (2018-05-03)
Suppose I have two Scatterbugs in play on the second turn of the game and it's my turn; can I use "Abnormal Outbreak" twice?
Yes, you can use it once for each Scatterbug you have in play during that turn.
Source: Forbidden Light FAQ (2018-04-20), TPCi Rules Team (2018-05-03)