Rulings

If I use Entei's "Flare Fall" attack but I only have 3 Basic Fire Energy in play, will my one Prism Energy count and let me do damage?

Yes, that works (as long as Prism Energy is attached to a Basic Pokemon). Flare Fall does not specifically say the energy has to be Basic Energy.

If I have Meganium with "Wild Growth" Ability on the bench and Teal Mask Ogrepon with 2 Basic Grass Energy attached in the Active Spot, can I use its "Myriad Leaf Shower" attack if Nighttime Mine Stadium is in play?

Yes, you can. Wild Growth counts the 2 Basic Grass energy cards as 4 energy, so you satisfy the new attack cost of 4 Energy due to the Nighttime Mine.

If my opponent uses N's Zekrom's "Shred" attack and does enough damage to KO my Mega Hawlucha ex, do I get to flip a coin for its "Tenacious Body" Ability?

The full damage will be done by Shred, but then if the coin flip for Tenacious Body is heads 10 HP is restored to Mega Hawlucha ex AFTER all the damage is done. Mega Hawlucha ex would not be KO'd.

If my opponent's N's Vanilluxe uses its "Blizzard" attack and there is a Battle Cage Stadium in play, would Benched Pokemon be protected from taking 10 damage each?

No. Doing damage is not an effect and is different from placing damage counters. Battle Cage only protects against placing damage counters, not damage done, even if that damage came from the attack text.

If I use Rotom's "Roto Call" attack can I get Fan Rotom and Rotom ex and put them on my Bench?

If you have room on your bench, yes. Any Pokemon that has "Rotom" in their name can be chosen.

Can I use Mega Charizard Y ex's "Explosion Y" attack if I have two Basic Fire Energy and a Counter Gain tool attached to it if I'm behind on Prizes?

Yes, even though you are only discarding two Energy you can use the attack.

If N's Vanilluxe uses its "Snow Coating" attack on a Pokemon that already has two damage counters on it, does it place four more damage counters on that Pokemon for a total of six?

No, that's not now it works. Snow Coating counts how many damage counters are already on the Pokemon and places the same number of additional damage counters on it. So in your example a Pokemon with two damage counters would now have a total of four on it, not six.

If I have two Team Rocket's Dugtrio with the "Holes" Ability in play and my opponent Retreats their Active Pokemon, do they place 2 or 4 damage counters on it?

They place 4 damage counters. The Ability can stack.

If Battle Cage is in play, what happens if my opponent switches or retreats their Active Pokemon to the bench while I have a Team Rocket's Dugtrio with the "Holes" Ability in play?

Their Pokemon is on the bench when the Ability is applied, so it takes no damage counters thanks to Battle Cage.

If there is a Battle Cage in play, and I use N's Vanilluxe's "Snow Coating" attack, what happens if my opponent has a Benched Pokemon with 3 damage counters on it?

Doubling the number of damage counters requires damage counters to be placed. So the damage counters would not be added to your opponent's Benched Pokemon; it would be protected by the Battle Cage.

If I played Canari this turn and I have 2 Heliolisk in play, can I use each of their "Frilled Generator" Abilities?

Yes, each Heliolisk can use its Ability. The "once during your turn" refers to each Ability individually.

When using Mega Lopunny ex's "Gale Thrust" attack, what counts as "moving to the Active Spot this turn"?

Your turn starts when you draw a card. If Mega Lopunny ex moved to the Active Spot prior to that, it is not during your turn. For example, if your opponent KO'd your Active at the end of their turn, moving Mega Lopunny ex to the Active Spot at that time is during their turn. Or if your Active was KO'd by Poison during Pokemon Checkup between turns, that is also not during your turn. And finally, if Buneary moved to the Active Spot during your turn and then evolved into Mega Lopunny ex, that would not count because it was Buneary when it moved to the Active Spot.

If Dusknoir uses its "Cursed Blast" Ability and targets an opponent's Benched Pokemon while Battle Cage is in play, would Dusknoir be Knocked Out even though it placed no damage counters?

Yes. It still used the Ability even though the placement of the damage counters was blocked by Battle Cage. So Dusknoir is Knocked Out.

Would my Paldean Tauros' "Raging Charge" attack count a damaged Tauros in its damage calculation?

Yes, any damaged Pokemon with Tauros in its name counts in the calculation. However, since Paldean Tauros and Tauros are Pokemon with different names you could have 4 Paldean Tauros and 2 Tauros from Destined Rivals in play, and any of them that are damaged would add +40 to the Raging Charge attack.

If one of my Pokemon was KO'd last turn by damage and Mega Gengar ex's "Shadowy Concealment" Ability kept my opponent from taking a prize for it, will I get to do the bonus damage if I use Krookodile's "Vengeful Fang" attack?

Yes, because your Pokemon was still Knocked Out even if your opponent didn't take a prize card for it.

If I flip any heads for Smeargle's "Energizing Sketch" attack, can I choose to attach no Basic Energy from my discard pile?

No, you must attach at least 1 Basic Energy from your discard pile if you are able to.

If Pawmot already has 100 damage on it, can I choose to do 60 damage to Pawmot with its "Voltaic Fist" attack in order to Paralyze the Defending Pokemon even though it would knock out my Pawmot?

Yes, there is no restriction to prevent that. The Defending Pokemon will still be damaged and Paralyzed, and then you check for Knock Outs, including Pawmot.

If Battle Cage is in play and I use Munkidori's "Adrena-Brain" Ability to try and move 3 damage counters from one of my Pokemon to one of my opponent's Benched Pokemon, what happens?

The three damage counters are removed from your Pokemon, but since they cannot be placed onto Benched Pokemon they just vanish from play.

For Suicune's "Crystal Fall" attack, if I have 3 Basic and one Prism Energy in play, do I get its +90 bonus damage?

Yes, the effect of Crystal Fall does not specify Basic Energy cards.

If my Lokix is Confused and successfully uses its "Jumping Shot" attack against my opponent's Mismagius ex with the "Swirling Prose" Ability, will the new Pokemon I send out be Confused?

No, it will not.