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)
How does Slaking's "Lazy" Ability or any other form of Ability denial that only applies to Pokemon "in play" interact with Abilities like Giratina's "Distortion Door" Ability that puts a Pokemon card from the discard pile onto your bench?
Since Distortion Door happens when Giratina is not in play, you can use it to put Giratina onto the bench regardless of Lazy or other similar Abilities. You also get to put the damage counters onto your opponent's benched Pokemon too, because you must complete the action of Distortion Door prior to it being shutoff due to Lazy.
Source: TPCi Rules Team (2018-11-15)
Can you evolve Ditto {*} into a Stage 1 Pokemon and then on a later turn place a new, different Stage 1 Pokemon onto it?
No, not unless you have devolved Ditto {*} somehow during a previous turn.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
If I have placed a Stage 1 Pokemon onto Ditto {*}, can I later evolve that into the corresponding Stage 2 Pokemon?
Yes, you can!
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
Can you choose to not Confuse your opponent's active Pokemon if you attach Fairy Charm to a Tapu Lele that has the "Charmed Charm" Ability?
Yes, it is optional.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
What happens if I use Skiploom's "Floral Path to the Sky" Ability but fail to find a Jumpluff in my deck?
Skiploom stays in play, and since you searched your deck the ability is used up for the turn.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
What happens to any damage counters on Skiploom when it uses its "Floral Path to the Sky" Ability? Do they go on the Jumpluff that takes Skiploom's place?
Any damage counters on Skiploom are removed when it goes to the Lost Zone; they do not transfer to the Jumpluff that takes its place. Special conditions are not transferred to the new Jumpluff either.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
If you Knock Out a Pokemon using one of Tyranitar GX's attacks, do you get to take a prize card if the Pokemon is sent to the Lost Zone due to Tyranitar GX's "Lost Out" Ability?
Yes, you do. It is still Knocked Out.
Source: Lost Thunder FAQ (2018-10-20), TPCi Rules Team (2018-11-01)
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)
What happens if you use Rayquaza GX's "Stormy Winds" Ability, but can only discard less than 3 cards from your deck? Do you get to attach a basic Energy card from your discard pile to Rayquaza GX or not?
If you can discard at least 1 card from your deck, you can use the Ability and attach a Basic Energy card from your discard pile. If you can't discard any cards, you can't use it.
Source: TPCi Rules Team (2018-08-16), TPCi Rules Team (2018-09-06)