The wording of Shield Energy is now as follows, "This card can only be attached to {M} Pokémon. This card provides {M} Energy only while this card is attached to a {M} Pokémon. Any damage done to the {M} Pokémon this card is attached to by an opponent's attack is reduced by 10 (after applying Weakness and Resistance). (If this card is attached to anything other than a {M} Pokémon, discard this card.)". Damage should be reduced *after* applying Weakness and Resistance. Templating changed to reflect the reduction of damage being taken.
Source: TPCi Announcement (2015-04-24), TPCi Rules Team (2015-05-07)
If I have a Mystery Energy attached to an active Trevenant with a Retreat Cost of {3} could I pay for my one Retreat Cost using the Mystery Energy?
Yes, Mystery Energy will reduce the Retreat Cost, and you can discard it to pay for the final energy. The Pokemon is on the Bench before the Energy Cost returns to normal.
Source: TPCi Rules Team (2014-11-13)
Can I attach Strong Energy to a non-Fighting type Pokemon?
No, the text says you can't.
Source: Furious Fists FAQ (2014-08-28), TPCi Rules Team (2014-08-28)
If I have Strong Energy attached to a Fighting type Pokemon and use an attack that says to discard an energy, do I get the bonus damage from Strong Energy before I discard it or not?
Yes, you do.
Source: Furious Fists FAQ (2014-08-28), TPCi Rules Team (2014-08-28)
Can I attach Herbal Energy to a non-Grass type Pokemon?
No, the text says you can't.
Source: Furious Fists FAQ (2014-08-28), TPCi Rules Team (2014-08-28)
If I have Strong Energy attached to a Trapinch and it evolves into a Vibrava, what happens?
When you evolve from a Fighting type Pokemon to another type (Dragon, in this case), the Strong Energy is immediately discarded.
Source: Furious Fists FAQ (2014-08-28), TPCi Rules Team (2014-08-28)
Can I have 4 Blend Energy {G}{R}{P}{D} and 4 Blend Energy {W}{L}{F}{M} in my deck?
Yes, you can. The symbols {W}{L}{F}{M} and {G}{R}{P}{D} are part of the name of the card, so they are counted as different cards.
Source: Dragons Exalted FAQ (2012-08-23), TPCi Rules Team (2012-08-23)
Can I choose to put the Pokemon Rescue Energy is attached to in my Discard pile instead of back to my hand?
No, Rescue Energy states that you have to put all Pokemon cards back into your hand when it's KO'd by damage from an attack.
Source: PUI Rules Team (2011-09-29)
If an evolved Pokemon is Knocked Out with Rescue Energy attached to it, do you get to put all of the evolution stage cards and Basic Pokemon card back into your hand, or just the highest stage Evolution card?
All of them go to back into your hand.
Source: Triumphant FAQ (2010-11-04), PUI Rules Team (2010-11-04)
What happens if a Pokemon with Rescue Energy attached is Knocked Out by an attack that normally sends cards to the Lost Zone?
The order of resolution for the effects can be decided by the owner of the Pokemon with Rescue Energy attached to it. So the Pokemon can either go to the Lost Zone and stay there, or use Rescue Energy to return the Pokemon to your hand. Any other cards such as Energy, Tools, etc. would still go to the Lost Zone if the attack specifies.
Source: Triumphant FAQ (2010-11-04), PUI Rules Team (2010-11-04)