When using Darkrai VSTAR's "Star Abyss" Ability, can I use the Ability first, and then later put 2 Item cards into my hand?
No, you must take the 2 Item cards immediately when using Star Abyss. "During your turn" simply means you cannot use this Ability multiple times during the same turn.
Source: Astral Radiance FAQ; TPCi Rules Team (2022-05-26)
If I have multiple Eevee with "Resonant Evolution" in play, can each of them trigger if I evolve one other Eevee? Or do I have to evolve a separate Eevee for each one?
If you have multiple Eevee in play, playing a card from your hand to evolve 1 of them would trigger every Resonant Evolution.
Source: Astral Radiance FAQ; TPCi Rules Team (2022-05-26)
If I have multiple Regidrago in play, can I use each of their "Dragon's Hoard" Abilities during my turn?
No, you may not.
Source: Astral Radiance FAQ; TPCi Rules Team (2022-05-26)
When using Radiant Greninja's "Concealed Cards" Ability, can I discard an Energy card from my hand, and then later during my turn draw 2 cards?
No, you must draw the 2 cards immediately after discarding the Energy card. "Once during your turn" means you cannot use this Radiant Greninja's Concealed Cards Ability multiple times during the same turn.
Source: Astral Radiance FAQ; TPCi Rules Team (2022-05-26)
Can I use Regirock V, etc. to satisfy the requirements for Regigigas' "Ancient Wisdom" Ability?
No, you cannot. Ancient Wisdom is checking for exactly those card names, so Regirock V etc. wouldn't count.
Source: Astral Radiance FAQ; TPCi Rules Team (2022-05-26)
If I play Phoebe while my opponent has a Dunsparce with "Mysterious Nest" Ability in play, do my Pokemon VMAX's attacks calculate Weakness if applicable or not?
The term "any effects" does not include effects that alter Weakness and Resistance. So Phoebe does not allow you to ignore Mysterious Nest's effect.
Source: TPCi Rules Team (2022-05-05)
If my opponent has a Galarian Cursola V's "Gnawing Aura" Ability in play, if I use Zarude V's "Jungle Rising" attack and attach any energy cards to one of my Benched Pokemon, do I place the damage counters for "Gnawing Aura" first and then heal, or vice versa?
The player using Jungle Rising gets to choose which order to place damage first and then heal, or heal first and then place the damage counters for "Gnawing Aura".
Source: TPCi Rules Team (2022-05-05)
When you attach "Rainbow Energy" from your hand to Skiploom with the "Solar Evolution" Ability, do you place the damage counter onto it before or after evolving to Jumpluff?
The owner of Skiploom can choose the order of the effects. They can choose to place the damage counter from Rainbow Energy before evolving; however, if they choose to use Solar Evolution first the effect of Rainbow Energy is ignored because Jumpluff is not the same Pokemon the energy was attached to.
Source: TPCi Rules Team (2022-04-28)
While the opponent's Galarian Cursola V's "Gnawing Aura" Ability is working, if you attach an energy from your hand to your Skiploom with the "Solar Evolution" Ability, do you place the 3 damage counters onto it before or after evolving to Jumpluff?
The owner of Skiploom can choose the order of the effects. They can choose to place the damage counters from Gnawing Aura before evolving; however, if they choose to use Solar Evolution first the effect of Gnawing Aura is ignored because Jumpluff is not the same Pokemon the energy was attached to.
Source: TPCi Rules Team (2022-04-28)
If Mew VMAX uses its "Max Miracle" attack against the opponent's Fusion Strike Pokemon while the opponent has an Oricorio with the "Lesson in Zeal" Ability in play, does "Max Miracle's" damage get reduced or not?
The damage reduction of Lesson in Zeal is considered an "effect on the Pokemon". Max Miracle ignores ANY effect on the opponent's Active Pokemon, so therefore Max Miracle would be able to overcome the effect of Lesson In Zeal.
Source: TPCi Rules Team (2022-04-28)