seriously Gprime's worst counter is getting out spead, even countering it with an absol, I still think the best counter is to out speed gengar, don't give it the advantage to kick pokemon out of you're hand, and if you do put some into you're deck to bluff, because you're more then always wanting to bank on the fack of them picking a wrong card and out playing them. Even if lost world come's out, I really don't think lostgar will be much of a threat, In fact I want it to so I can make a dillerious counter to it. cya