Koraidon ex (Journey Together)

I apologize that updating this deck took way too long, it just needed a lot of work to get a much better build.

Strategy: I recommend going first with with deck unless you are fighting Turbo Decks like Miraidon. Kaiser Tackle does 280 and does 60 damage to itself which helps boost Koraidon ex's damage boost even further for the first attack. Ancient Booster Energy Capsule helps make Koraidon more Tankier allowing it to survive much longer when using Kaiser Tackle many turns in a row. Great Tusk

I apologize that updating this deck took way too long, it just needed a lot of work to get a much better build.

Strategy: I recommend going first with with deck unless you are fighting Turbo Decks like Miraidon. Kaiser Tackle does 280 and does 60 damage to itself which helps boost Koraidon ex's damage boost even further for the first attack. Ancient Booster Energy Capsule helps make Koraidon more Tankier allowing it to survive much longer when using Kaiser Tackle many turns in a row. Great Tusk helps mill your opponent's deck because why not, and Koraidon (The Single Prizer version) basically gets more free damage from having Ancient Pokémon in play. Sandy Shocks ex helps get some energy into play on it to help as a back up attacker, or you can use Energy Switch to move it around onto Koraidon, Great Tusk, Slither Wing, or Koraidon ex. Cornerstone Ogerpon ex is here to help wall against certain decks like Charizard ex and to activate Area Zero Underdepths which allows you to get more benched Pokémon into play which is quite needed. Slither Wing is a great attacker in this deck as well, it was needed in many matchups but this deck still needs some tuning. The ACE SPEC of choice, Prime Catcher, is a great gusting Option to bring in one of your Opponent's Pokémon and to pivot into of your own so like you could bring up something like a Fez and bring in your Bloodmoon to win the game by using its attack when you're down to like 1-2 prizes, or can be helpful in other situations. Anyways, feel free to make any changes or leave any suggestions!

Matchups:

Charizard ex: Pretty decent matchup as Cornerstone can shut them down, though Charizard can nuke you with Dusknoir's and take out your liabilities like a benched Koraidon, or giving up a prize to them Bossing up and KOing Latias ex.

Dragapult ex: You will probably lose this matchup but it could be pretty close but if you pull off Black Belt's Training, Kaiser Tackle can one shot Pult, try and go first and perhaps slowly mill them a bit.

Archaludon ex: Pretty decent matchup again, if you have enough damage on Koraidon to the point they can't KO it you have a decent chance at winning. Additionally, Black Belt's Training helps one shot  Archaludon. You do need to use Kaiser Tackle quite a lot though.

Raging Bolt ex: Battle of the ancients, however, you have a pretty good matchup here as Kaiser Tackle one shots Raging Bolt and you can just boss up the liabilities like Ogerpon, Fez, or Latias ex.

Wall Deck: You pretty much win this matchup as long as you avoid Farigiraf ex. Though, Koraidon (single prizer) or Cornerstone can quite literally deal with that and Mimikyu.

Terabox: Horrible matchup, Lillie's Clefairy ex quite literally sweeps your team though it gets counter by cornerstone so you do have a slight chance to win.

Feraligatr: Pretty good matchup if you get rid of the Totodile's earlier on. If they run Milotic ex that makes it even easier. Just use cornerstone or a single prizer attacker to deal with Mimikyu.

N's Zoroark ex: Pretty decent matchup, do target N's Pokémon that allows Zoroark to attack with but yet again Kaiser Tackle does just OHKO Zoroark so it's not that difficult.

Froslass Budew Box: Koraidon ex doesn't have an ability and just avoid putting many ability Pokémon into play. You will most likely win this matchup.

Roaring Moon ex: Yet again another battle between the ancients, however, Roaring Moon was hit with a nuclear bomb called Rotation which got rid of its main cards, though, this matchup is basically in your favor as your Kaiser Tackle nukes them all. Unless they play Lillie's Clefairy ex for some reason, if that does happen you will stand less of a chance unless you use something like Cornerstone to wall it. Besides that, their Pecharunt is not really a threat and them going for a Donk isn't really likely.

Miraidon ex: The battle of the ancient sandwich enjoyer bike and the future (not labeled future due to it releasing in SV Base) sandwich enjoyer bike. This matchup is pretty much in your favor due to the amount of Fighting Pokémon here. Kaiser Tackle quite literally annhilates them all. Only way Miraidon can pull this off is by pulling an amp you very much Squawkabilly ex, and getting rid of your liabilities. If they run Pikachu ex as an attacker it'd be a bit less dangerous as the energy cost is quite expensive, however, if they do pull it off you still have decent odds at winning. Now if it's Joltik Box, just give up, it isn't worth it, even if you go second, they can still prepare Lillie's Clefairy, that thing is a huge menace to this deck.

Edits:

Edit #1: Removed Cycling Road's entirely as they were useless, removed Prime Catcher, Jet Energy, 2 Nest Balls, and 2 Ultra Balls. Due to these removals, they have been replaced as what follows: Precious Trolley, 2 Area Zero Underdepths, 2 Professor's Research, 1 Fire Energy for more consistency, a 2nd Squawkabilly ex for even more consistency, and a 2nd Cornerstone for yet again more consistency on being able to activate Area Zero.

Edit #2: I don't even remember the changes I made it's because of how many changes and builds I kept testing this deck. All I remember was removing like a fighting energy and super rod.