at least for water decks this can get rid of mega ampharous 2nd effect. But even that does not see much play but with a muscle band and 4 energy this thing can 1 shot most ex pokemon, can see it in the archie blastoise but even then u have mutiple keldeo ex to rush in and retreat in expanded and if they play silent lab you still have the same problem. Even zoroark is a more efficient in standard for atking for a single DCE.