Can I attach a Shield Energy to Lucario with the "Dual Armor" Ability?
It depends on when the Shield Energy is being attached. If Lucario already has a Metal Energy attached to it Dual Armor makes Lucario both Fighting & Metal types, so you CAN attach Shield Energy at that point. However, if Lucario does not already have a Metal Energy attached or if its Dual Armor ability has been shut off, then you CANNOT attach a Shield Energy to Lucario.
Source: TPCi Rules Team (2016-02-25)
If Lucario with "Dual Armor" Ability has one Basic Metal and one Shield Energy attached, what happens if the Basic Metal Energy card is removed? Does Lucario remain a Metal type or would I have to discard the Shield Energy?
Once Lucario gains Metal typing due to Dual Armor it stays that way as long as a Metal Energy is attached. And Shield Energy provides a Metal Energy as long as it is attached to a Metal type Pokemon. So if only the Shield Energy remains, Lucario stays Metal type and the Shield Energy remains attached.
Source: TPCi Rules Team (2016-02-25)
If I have Suicune with the "Wind Charm" Ability Active and my opponent attacks with Greninja's "Shadow Stitching", are all my Abilities turned off including "Wind Charm", or does "Wind Charm" prevent "Shadow Stitching" from disabling my Pokemon's Abilities?
Wind Charm prevents Shadow Stitching from disabling your Pokemon's Abilities. However, if Suicune goes to the Bench, Wind Charm's effect goes away and your Pokemon will no longer have Abilities that turn. Suicune also does not protect any Pokemon not already in play.
Source: BREAKpoint FAQ (2016-01-23), TPCi Rules Team (2016-02-11)
If my Zebstrika with the "Zap Zone" Ability attacks a Pokemon with {L} Weakness, does the Weakness get ignored because of "Zap Zone"?
No, Weakness & Resistance are game mechanics, they are not effects that would be ignored because of Zap Zone.
Source: BREAKpoint FAQ (2016-01-23), TPCi Rules Team (2016-02-11)
Can I play Unown onto my bench, activate its "Farewell Letter" ability to discard it, and then use Revive to put it back onto the bench and use "Farewell Letter" again?
Yes, you can.
Source: TPCi Rules Team (2015-12-03)
Since a BREAK Pokemon "retains the attacks, Abilities, Weakness, Resistance, and Retreat Cost of its previous Evolution" can a Mew EX with the "Versatile" Ability use an attack of the Pokemon that the BREAK Pokemon evolved from (providing it meets energy requirements, etc.)?
Yes, it can. The underlying Pokemon's attacks are part of the BREAK Evolved Pokemon and are therefore able to be copied by Versatile.
Source: TPCi Rules Team (2015-12-03)
For Haunter's "Gothic Fear" Ability, can I choose to confuse only one of the Active Pokemon or must BOTH of them be Confused?
It's either both or none; you cannot choose only yours or only your opponent's Active Pokemon to be Confused.
Source: BREAKthrough FAQ (2015-11-19), TPCi Rules Team (2015-11-19)
If I have more than one {L} Energy attached to Raikou, does its "Shining Body" Ability reduce the damage done to it by 20 for each {L} Energy?
No, you only get a maximum of 20 damage reduced from this Ability.
Source: BREAKthrough FAQ (2015-11-19), TPCi Rules Team (2015-11-19)
If I attach a Grass energy from my hand using M Sceptile EX's "Jagged Saber" attack to a benched Malamar EX, will I be able to use Malamar EX's "Hyper Hypnosis" Ability to put my opponent's Active Pokemon to sleep?
Yes, you can. An Energy is being attached from your hand to Malamar-EX, so Hyper Hypnosis can be used.
Source: TPCi Rules Team (2015-10-29)
Does a BREAK Evolved Pokemon such as Raichu BREAK or Marowak BREAK still have access to the type changes from Flareon's "Flare Effect" ability or Vaporeon's "Aqua Effect" ability or Jolteon's "Electric Effect" ability? Or do those Abilities no longer apply after the Stage 1 Pokemon becomes a BREAK Evolved Pokemon?
Pokemon BREAK are their own classification, so they are not considered Stage 1 Pokemon. Although BREAK Evolved Pokemon share many of the traits of the Pokemon it evolves from, it is no longer a Pokemon of the previous stage it evolved from. Since it is no longer a Stage 1 Pokemon, the Flareon's/Vaporeon's/Jolteon's abilities do not apply.
Source: TPCi Rules Team (2015-10-29)