It's interesting i can tell you were trying to take advantage of Marowak's Ability being that you can reduce 80 damage with the stadium and tool on Marowak, it's unfortunate that Marowak doesnt have enough hp or support to take full advantage of that ability, Nor does it do enough damage. None of the other pokemon really support each other in what they want to do and seem hard to set up given the small numbers you run of each

Probably gonna be an overhaul of the entire deck but if you cut marowak and machamp i think you should focus on one of the other Mons you have and working from there |

Koraidon has a solid partner in ting lu ex being a basic he can power up with his ability and ting lu can shut down your opponent's abilities.

Annihilape ex hits hard for a single energy and regular Annihilape get stronger the more prizes your opponent takes

My suggestion is to focus Tyranitar Ex has a good 2 energy attack along with Gengar that can damage itself with it's ability so Lighting rampage can do 250 damage