I1lucky said:
...what initiated this sudden change? Megas? Ancient traits? Spirit links? Or even pyroar? All I know is that it started as soon as primal clash came out.
IMO, based upon some play-testing I've done thus far, as well as having some lengthy discussions with a few accomplished players in my area, the PCL set will have a significant impact on the former meta game. When you consider one simple fact that Garbotoxin can NOT stop the new, PCL Alpha and Omega "super powers" (is there a formal name for these abilities yet?), that affects deck considerations. Pre-PCL, some Mega Poké were quite favored; with the release of PCL, more solid Mega Poké have been introduced. As a result, I believe there will be a shift towards using certain decks based upon more Mega Poké vs. some older solid decks.
Also, several of the new "good" PCL Poké have 210+ HP; so, certain older decks will not be able to "hit" the right numbers easily as they did before.
New PCL cards like Archie and Maxie's HBT adds a really nice twist to how one might restructure some older decks. Teammates also is really nice for some decks too..
In addition, new PCL Items like Dive Ball will entice, as well encourage W deck builds. On top of that, new PCL Stadiums like Rough Seas, Scorched Earth, Shrine of Memories and Silent Labs all
encourage and perhaps reward(?) one to strongly reconsider building and running evolution decks.
IMO, some of the older, pre-PCL meta decks will fade into the sunset; for their time in the sunshine has now past... PCL will significant impact the meta, IMO.