This decks strategy is pretty straightforward and all you’ll need is some luck to get this strategy going. I think ideally you'll want to go first with this deck. Attach an Energy card for the turn, and set up your bench with your draw support Bidoof and your heavy hitter Giratina V. The following turn evolve your Arceus V into Arceus VStar use your Vstar ability "Starbirth" to search for those key cards to solidify your strategy. Using Arceus's attack "Trinity Nova" to attach energy cards to your Pokémon V is essential when setting up your attackers for the turns to come. Having those energies attached to your Pokémon also opens up the opportunity of searching for your Iron Leaves Ex “Rapid Vernier” ability to knock out those Charizard Ex’s.
This deck also includes a Lost City Stadium which is great against decks like Charizard Ex, Lost Zone decks, Gardevoir Ex, Espathra Ex, Chien Pao, and Miraidon. Lost City opens the opportunity of denying the possibility of returning into play Pokémon like Pidgey, Charmanders, Ralts, Kirlia, Snorlax, Flittles, Natu, Frigibax, Comfeys, Sabeleye, Iron Hands Ed with items like Superod etc.
P.S This deck is usually paired with Skovwet and bibarel as its draw engine, to give you that consistency you’ll need throughout your matches. Activating your Skovwet's "Nest Stash" ability before Bibarel's "Industrious Incisors" ability is crucial to make sure you're able to see more of your deck throughout the match.