When I saw the translation for the new Foretress ex*, I thought of how it perfectly aligns with the GX attack regarding Buzzwole and Pheromosa GX, where you knock out Foretress ex so your opponent is at 4 prize cards and you accelerate 5 grass energy to Buzzwole and Pheromosa, attach for turn so you have 6. This is your second turn. On your first turn you put Pineco in play and attach energy for turn to the GX. The Foretress forcing your opponent at 4 prize cards might sound bad, but you can also take advantage of the Beast Ring, where if your opponent is a 3 or 4 prize cards, which from the Foretress using it's ability they should, you may search your deck for up to two basic energy cards and attach them to one of your ultra beasts, this being our GX. After all of this setup, you can launch either an Elegant Sole attack to then follow up with Beast Game or go straight to Beast game if you can apply enough damage to knock out the defending Pokemon, which you can boost damage output via Beastite, Ludicolo and Beast Energy. Once you take your minimum of 4 prize cards via Beast Game, you can sweep their side with less difficulty now that you are down to two or less prize cards. Beast Game might even knock out a Tag Team or VMAX Pokemon and you win the game anyways! But before you take the large quantity of prize cards, consider N or if possible Roxanne to disrupt your opponent's hand to ensure a minimal recovery from their side. And this process can, if done right, take only two turns!
*Foretress ex
Ability--Once during your turn, you may search your deck for up to 5 basic energy and attach them to your grass Pokemon in any way you like (or maybe it's to only one Pokemon, IDK) If you do, this Pokemon is knocked out.
[G][G] 120--During your opponent's next turn, this Pokemon takes 30 less damage from attacks.