>>32457280>theme deckIncineroar is the good one. You don't need another. One on top of the freebies is enough to beat all the trainer challenges and then you should be getting the fuck out of theme for ever asap. If you've done the Trainer challenges previously then there is no need to be in theme at all.
>shop bundlesNot unless you really want the sleeves. Keep your coins for the new set coming out on the 5th.
>rotationStandard is currently PRC-on. Rotation happens in September. Most likely BKT-on but no-one can know for sure until it happens. So Shaymin is good for a few months more then it's likely to be Expanded only.
https://pkmncards.com/sets/>good deckshttp://www.pokegoldfish.com/metagame/standard#paperTauros-GX in everything. Prepare your anus for item lock and snipe courtesy of Deciduplume. Volcanion as the main counter. Quad Lapras as the counter to the counter (but it's a shit deck desu). Turbo Darkrai, Lurantis Lock, MMewtwo, Umbreon/Zoroark, Houndoom Mill/Gumshoos & occasional fairy decks are the others I see most often, but this will all change when our Trash Overlord returns in a few days time. I'd let the meta settle before you invest too heavily in anything. Just build something quick and easy for now.