well i kinda agree with chad. banning seems a little extreme, but I think it should AT LEAST be eratta'd.
Psychic Lock is a broken attack. Like chad said, there is no way to get out of it unless you wanna be dumb and play Holon CIrcle, in which case you don't get to do anything and GG could easily counter it anyways. For this reason, I think that erratta-ing (is this a word?) Psychic Lock so that it places the effect on a pokemon, wheter its the gardy or the defending pokemon, so that you can at least have a CHANCE to break it. and gardy would STILL be a broken card; anything that can lock powers is pretty amazing in and of itself. and it has its power and the lv x to help it out too.
Something else I was thinking of was simply making gallade x2 weak to psychic. one of the main reasons counter decks have had trouble beating gardy consistently was because, if you were running a psychic deck (bannete, maismagius varients, etc), you had to choose wheter to lock special energies with Crystal Beach or to get that KO on the stupid gallde with the lake boundary. really, gallade is what keeps these decks at bay. the possibility of a scramble or dre out of nowhere is too powerful, and is the reason gg can still have a cake walk with a deck made to counter it. if x2 weak, bannete, mismagius, and other psychic pokemon would actualy be able to play their Beaches and still get to oneshot the gallade.
considering both cards are already broken as they are, it seems fair that at least ONE of these cards needs to be watered down a bit.