The entire deck is built around Slowking's Seek Inspiration attack. For a Psychic and a Colourless Energy, Slowking discards the top card of its deck and, if that card is a Pokémon without a Rule Box, copies one of its attacks. That single sentence is why the Pokémon list reads like a toolbox: Metagross's Bounce Back forces an opponent's switch, Annihilape's Destined Fight knocks out both Active Pokémon, Kyurem's Trifrost spreads 110 damage across three targets. Each of those non-Rule Box Pokémon lives in the deck waiting to be revealed at the right moment.

Deck ordering is how you control which Pokémon appears. Ciphermaniac's Codebreaking searches for two cards and places them on top of the deck in any order, so you choose exactly what Seek Inspiration hits next turn. Academy at Night adds a second tool: once per turn each player may put a card from their hand on the top of their deck, letting you replace a wrong card with the one you actually want. Running four copies of each means you can reliably have one available when you need to load the top of the deck.

Mew ex adds a parallel route through its Memory Helix Ability, which lets it use the attacks of any of your Benched Pokémon. Because Mega Kangaskhan ex, Annihilape, Metagross, Zeraora and others sit on your Bench rather than in the deck, Mew ex can reach those same attacks without needing to discard. You still need the necessary Energy for each attack, and the deck carries four Telepathic Psychic Energy, four Basic Psychic Energy, three Wondrous Patch, and two Boomerang Energy to fuel both routes.

Mega Kangaskhan ex earns its spot even when it is not being copied. With 300 HP and the Run Errand Ability - draw 2 cards once per turn while it is in the Active Spot - it functions as a durable, card-generating pivot. Latias ex's Skyliner Ability removes Retreat Costs from all your Basic Pokémon in play, so you can swap Mega Kangaskhan ex out freely the moment you have finished drawing, then bring Slowking or Mew ex forward to attack without paying any Retreat.