Here you have an Eevee, capable of summon an Eevee-GX. And if you don't find the Jolteon-GX, you have a normal one in your deck, with decent stats. There are a big amount of trainer cards that will help you to look for energy cards, in your deck, and in your discard pile. You also have cards capable of summoning GX Pokémon, where you can pick Eevee-GX, Jolteon-GX, Pikachu-GX and Raichu-GX. You also have special energy cards, which are most for lighting Pokémon, but you also have ones with double or even triple of colorless energies.