Greninja BREAK, Garchomp/Lucario, Alolan Dugtrio, and Empoleon are good decks that you can play that don't require GX's. Tapu Lele-GX and Zoroark-GX can help decks, but if you can't afford that, it's fine. I'd recommend Garchomp/Lucario as it's the least reliant on GX's. I'd pick up two "Mach...