Attacks » Piston Headbutt | Trainers » Silver Mirror
What happens to the opponent's Energy if I use Krookodile's "Piston Headbutt" attack, but my opponent's Pokemon has Silver Mirror attached to it?
If Silver Mirror is attached to the Defending Pokemon and it is not a Pokemon-EX you cannot move an Energy off of it. If the Defending Pokemon does not have Silver Mirror attached, a Benched non-EX Pokemon with Silver Mirror is a valid target for the choice of where to move the Energy to, but since Silver Mirror prevents all effects of attacks done by Team Plasma Pokemon the Energy would be discarded rather than attached to the Benched Pokemon.
Source: TPCi Rules Team (2013-10-09)
Attacks » Damakinesis | Trainers » Silver Mirror
Say you have Silver Mirror attached to one of your non-EX Pokemon, and it is the only remaining Pokemon. If your opponent's Beheeyem tries to attack with "Damakinesis", the six damage counters obviously don't get moved to the Pokemon with Silver Mirror since Beheeyem is a Team Plasma Pokemon; but do the damage counters get removed and then discarded, or do they not move at all?
The non-EX Pokemon with Silver Mirror attached is a valid target for the choice of where to move the damage counters to, but since Silver Mirror prevents all effects of attacks done by Team Plasma Pokemon the damage counters would be discarded rather than attached to the Defending Pokemon.
Source: TPCi Rules Team (2013-09-26)
Trainers » G Booster | Trainers » Silver Mirror
Would Genesect EX be able to attack with "G-Booster" if the Defending Pokemon has Silver Mirror attached?
G Booster gets through because it ignores all effects on the Defending Pokemon, including Silver Mirror.
Source: TPCi Rules Team (2013-08-15)