If an Evolution Pokemon has been put directly into play by using Greninja & Zoroark GX's "Dark Union GX" attack can I attach Triple Acceleration Energy to it?
Yes, as long as the Evolution Pokemon says "Evolves from..." on it.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
If one of my Pokemon has the least HP remaining and I use Greninja's "Bring Down" attack, would it Knock Out my own Pokemon?
Yes! And your opponent gets to take the Prize card(s) for it.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
If Gastly with the "Swelling Spite" Ability is my last Pokemon in play and is Knocked Out, do I get to search for 2 Haunter and put them on my Bench or do I lose the game?
Yes, you get to use the Ability before you lose. Gastly is Knocked Out, the opponent takes a Prize card, and then you search your deck for 2 Haunter and put them onto your Bench. (Then you would have to promote one of the Haunter as your new Active Pokemon.)
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
Can I use Melmetal's "Metal Eater" Ability to discard a {M} Pokemon from my hand if Melmetal is not damaged?
Yes you can. The first part of Metal Eater is to discard a {M} Pokemon from your hand, period. Then you do as much of the rest of the Ability as you are able to.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
Does Sandile's "Intimidating Fang" Ability also reduce damage done to Benched Pokemon?
Yes, it reduces all damage done by the opponent's Active Pokemon. Damage to your Defending Pokemon, your Benched Pokemon, and even damage done to your opponent's own Pokemon!
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
Can I use Caterpie's "Pupate" Ability or Metapod's "Emerge" Ability on the first turn of the game or the turn that the Pokemon came into play?
Yes. There is no restriction on the Ability.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
For Dedenne's "Dedechange" Ability, can I use it if I have no hand to discard?
Yes, you can. A hand of zero cards is still a hand, so you would discard nothing and then draw six cards.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
If I use Charjabug's "Battery" ability, is that an extra Energy card attachment or does it count as my one attachment for the turn?
It is an extra Energy attachment. You still get to attach one other Energy card as your normal attachment for the turn.
Source: TPCi Rules Team (2019-05-02)
Would Honchkrow GX's "Ruler of the Night" Ability prevent me from using Charjabug's "Battery" Ability to attach it to Vikavolt as an Energy card?
Yes it would prevent that because Charjabug would be a Special Energy card being played from your hand.
Source: Unbroken Bonds FAQ (2019-04-19), TPCi Rules Team (2019-05-02)
If I use Ditto's "Copy Anything" attack to copy one of my opponent's Tag Team GX attacks with a bonus effect for extra energy attached, do you count the extra energy starting at Energy #2, or after you take into account the "necessary Energy to use that attack"? For example, if it copies Pikachu & Zekrom GX's "Tag Bolt GX" attack, does it need 6 {L} attached or just 4 in order to get the bonus effect?
You count based on the required energy that normally has to be attached for the attack. So for Tag Bolt GX, Ditto would need 6 {L} energy attached to get the bonus effect.
Source: TPCi Rules Team (2019-04-18)