Yeah, I hope the presale is for the Steam Siege that comes out Aug. 2! My husband just joined the drop because it said 'presale'! He knows my son is heading to the prerelease this weekend. Hopefully this will be changed to say Steam Siege.
mrsambishopthis is not going to be a steam siege drop. However, I personally love the breakthrough set. 160 cards, and like 8 of them are mewtwo variants- one of my favorite pokemon. :)