Notes & Combos
Of all decks I used for the climb, I felt that Lycanroc/Rampardos was the most satisfying. I used it for the entire UB4 climb. It can win fast, and can lose fast.
The centerpiece of the deck is Rockruff, since you start with it 100% of the time. Rockruff's Signs Of Evolution is useful in more ways than just to evolve. If you are missing fossils or their lines, you can potentially Iono a hand of 5-6 cards (including the Lycanroc) the next turn. Rarely comes up, but it is an option.
You have about 2 flex spots in the deck. I originally had a Lillie and Giant Cape, which were eventually were replaced by a second Iono and Sabrina. The second Iono helped with consistency for sure. Sabrina is overall useful early or late game, and sometimes you can trap something with Aerodactyl's ability.
The deck is great against Oricorio and high HP leads, but is fairly weak to Garchomp's bench snipe, Carnivine, and grass-type overall. Everything else is quite winable as long as you can set up your fossils early on.