They can knock out your support Pokemon on the bench, but then they're ignoring your Lugia-EX, which can just one-hit K-O all of their attackers turn after turn
However, thats all just speculation until we get some kind of announcement
Therefore, if you are considering combo, my recommendation is to either have a combo that slays everyone quickly or add a few combo cards to decks that already exist, and if possible, to have those combo cards not look shockingly out of place
The variety also means niche strategies always exist for creative brewers
One of the most popular magazines from this time was Scrye Magazine, which released detailed price lists, as well as a "top 40" lists, showing the prices for the most popular cards being purchased around the USA