Lets look over our options, to see what decks are going to be good and what decks are going to bad for cities. Now im only going to menton a few decks, but this is how I feel the metagame will turn out to be.
Arceus (Deck itself)- Bad. Why? Because it is nearly impossible to get all 6 DIFFERENT TYPES of Arceuse in play. Even with 4 different copies, it would be kind of hard to pull it off consistently. Furthermore, you would have to start off with the Normal type Arceus. Loses to Machamp severly, and bringing out the right type Arceuse won't exactly be an easy task. No sirrey!
Charizard- Uber!- Charizard is sooo fricken fast that you can easily get a whole swarm of Fire Pokemon out there to really power up Charizards attacks. Thanks to his Pokemon Body. Weakness to water such as Kingdra, Palkia, and Gyarados, but Charizard can still take a hit or too. Once again, thanks to its awesome 140 HP and it's weakness to +30, instead of x2. If Tangrowth gets popular, Charizard will take over the tournaments much easier than expected.
Kingdra- Good and Bad- With an increase with Expert Belt, means no Crobat G's, and no PlusPowers. 80 damage for 1 energy is sick. Only problem is the new Tangrowth, Luxray AoA, and Luxray Lv X. What they all have in common that give Kingdra problems is the weakness and resistance factor. Then you have Mesprit LA that can give Kingdra a headache. Of course, if you put Lucky Egg in there, you would have to wait until Kingdra gets knocked out. In order to draw your newly refreshed hand, by drawing cards until you have 7 cards in your hand.
Gengar- Mediocre- Sure, Gengar recieves a brand new toy, by getting Gengar Lv X. However, Nidoqueen RR still gives spread decks problems. Such as the Gengar that that's being mentoned here. Simply, by removing 1 damage counter each of your Pokemon each turn. Boo hoo =(. The deck itself is already bad as it was, lacks damage, relys on coin flips, Unown G laughs at its face, easy to play the trainer cards around. Bad in my book.
Beedrill- Good- Beedrill could be the deck to play, but you have to be careful of Charizard and Blaziken FB mainly. Although, water decks such as Kingdra and Gyarados could splash them out of the tournament, preventing Blaziken and Charizard from getting that far. Although Charizard can last longer than Blaziken. The weakness to this deck though is if Weedle or Beedrill was in your prize cards, that means you coulnd wind up realistically dealing out 90 damage. Still, you have Azelf LA to fetch you the Pokemon you need at critical moment's. Only thing about Azelf is he can clog up the bench quite easily and Beedrill does get countered quite easily by Duskoir.
These are just my predictions of what I think might happen
