When playing Scoop Up Net, do I put all Pokemon stages into my hand or just the Basic or highest stage?
You put all of the Pokemon cards into your hand, including all Stages if applicable.
Source: Rebel Clash FAQ (2020-04-18), TPCi Rules Team (2020-04-30)
When using Sonia can I get one Pokemon and one Basic Energy card?
No, you can get up to two of one kind or the other; you cannot mix & match.
Source: Rebel Clash FAQ (2020-04-18), TPCi Rules Team (2020-04-30)
Does Carracosta's "Ancient Custom" Ability negate Stealthy Hood? Or does Stealthy Hood prevent "Ancient Custom" from affecting the Pokemon Stealthy Hood is attached to?
Stealthy Hood prevents Ancient Custom's effect on the Pokemon Stealthy Hood is attached to.
Source: TPCi Rules Team (2020-03-12)
If a Pokemon was attacked with Lunala GX's "Moongeist Beam", does that block Mallow & Lana from healing it?
The first part of Mallow & Lana says to switch your Active Pokemon with one of your Benched Pokemon. When your Pokemon is switched the effect of Moongeist Beam is removed, so then you can heal the Pokemon once it is on the Bench.
Source: TPCi Rules Team (2020-02-27)
Can I use Hyper Potion to heal a Pokemon with less than 120 damage on it or if I have less than 2 Energy attached to it?
You have to heal at least 10 damage to play the card. You must also have at least 2 Energy attached to the Pokemon you're healing; if there are less than 2 Energy attached you cannot use this card.
Source: Sword & Shield FAQ (2020-01-24), TPCi Rules Team (2020-02-06)
Say my opponent uses Trevenant & Dusknoir GX's "Pale Moon GX" attack on my Keldeo GX with "Pure Heart" while Power Plant stadium is in play. If I replace the Power Plant with another stadium during my next turn, does Keldeo GX get knocked out at the end of the turn or not?
If Keldeo GX remains the Active Pokemon it will be Knocked Out. Keldeo GX's Pure Heart Ability *prevents* effects, but it does not *remove* existing effects. If an attack like Pale Moon GX places an effect directly on Keldeo GX, that effect cannot be removed by reactivating Pure Heart; in other words, effects that are removed when returning to the Bench can't be removed by Pure Heart.
Source: TPCi Rules Team (2020-01-09), TPCi Rules Team (2020-02-06)
Does a player need to offer a cut when shuffling something other than their deck, such as when playing Marnie?
Yes. The purpose of a cut is to reduce the opportunity for cheating; that applies anytime a player is randomizing their cards.
Source: TPCi Rules Team (2020-02-06)
Say I have Keldeo GX already in play, and my opponent uses Latios GX's "Clear Vision GX" attack with Power Plant in play. If I play a different Stadium to get rid of Power Plant, can I use Keldeo-GX's "Resolute Blade GX" attack now?
Yes, you can. When Power Plant is removed Keldeo GX's Pure Heart Ability turns back on, and Keldeo GX is no longer hit by the global effect of Clear Vision GX. If an attack does not place an effect on Keldeo GX directly, like an attack that puts an effect that isn't removed when returning to the Bench, it can be removed by reactivating Pure Heart.
Source: TPCi Rules Team (2020-02-06)
Say Sky Field is in play and I have 8 Benched Pokemon, then I use Marshadow's "Resetting Hole" Ability. Do I discard Marshadow first and then discard down to 5 Benched Pokemon for the removal of Sky Field, or do I discard down to 5 Benched Pokemon first and then discard Marshadow?
The player who owns Marshadow can choose the order of discarding Benched Pokemon, either before or after the removal of Sky Field.
Source: TPCi Rules Team (2020-02-06)
Can I use Sitrus Berry to heal damage received from Poison/Burn in between turns?
No, you cannot. Sitrus Berry only works at the end of a turn.
Source: TPCi Rules Team (2020-02-06)