If my opponent Knocks Out my Active Pokemon and I promote my Zapdos to be Active after the attack, do I get the bonus 70 damage for "Thunderous Assault"?
No. In this scenario you promoted the Zapdos while it was still your opponent's turn. In order to get Thunderous Assault's additional damage it would have to become Active during YOUR turn.
Source: Team Up FAQ (2019-01-18), TPCi Rules Team (2019-01-31)
When I use Mimikyu's "Copycat" attack, do I need to have the same required energy as the opponent's previous attack?
No, you only need whatever energy is required on Mimikyu in order to use its Copycat attack. However, if the attack requires you to do something with a particular type of energy you don't have, you cannot use that part of the copied attack.
Source: Team Up FAQ (2019-01-18), TPCi Rules Team (2019-01-31)
If I use Sylveon's "Wink Wink" attack to have my opponent discard Ilima, can I use Victini's "Victory Star" Ability to force my opponent to re-flip their coins?
Yes, you can. If your opponent flips a coin as part of your Pokemon's attack, you can use "Victory Star" to force them to re-flip those coins; but keep in mind you will have to re-flip your coins for Ilima too.
Source: TPCi Rules Team (2018-11-15)
If my opponent used Gardevoir EX's "Shining Wind" attack to gain "no Weakness" and I play Pokemon Ranger when it is my turn, does their Gardevoir EX have a Weakness again?
Yes. The ruling about effects on Weakness and Resistance not being ignored has to do with damage calculations [see "General Gameplay -> Weakness and Resistance" section for reference], not about whether a Pokemon HAS Weakness or Resistance. Pokemon Ranger removes attack effects, including this one; so yes, Gardevoir EX would have Weakness again after using Pokemon Ranger.
Source: TPCi Rules Team (2018-11-15)
Does using Trumbeak's "Mountain Pass" Ability count as playing it from the hand? If so, would it be blocked if my opponent used Chimecho's "Bell of Silence" attack on the previous turn?
No, it is not being played from the hand. You are revealing the Trumbeak and then putting it into the Lost Zone; that is not blocked by Bell of Silence.
Source: TPCi Rules Team (2018-11-01)
Can I scoop up Virizion GX as part of its own "Breeze Away GX" attack?
Yes, you can.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
When using Blacephalon GX's "Burst GX" attack, does that count as "taking a Prize card" for the purposes of other attacks that do more damage "for each Prize card you/your opponent has taken"?
No, using Burst GX to put a prize card into the Discard Pile does not count as taking a prize card.
Source: TPCi Rules Team (2018-11-01)
When I look at my face-down Prize cards with Poipole's "Eye Opener" attack, do I have to put them back in the same order?
Yes, you only get to look at them, you don't get to rearrange them.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
Does using Lugia GX's "Lost Purge GX" attack count as KO'ing a Pokemon?
No, it does not. You are moving the opponent's Active Pokemon and all cards attached to the Lost Zone, and since it does not count as a KO you don't get to take any prizes for it.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
If Blacephalon GX uses its "Mind Blown" attack to discard a Beast Energy as one of the Fire Energy discarded, does it still get the +30 damage bonus from Beast Energy?
Yes, it does. The energy cards are chosen, then Damage is calculated before the cards are sent to the Lost Zone.
Source: TPCi Rules Team (2018-11-01)