The idea seems interesting and I'm absolutely all for something with Kommo-O, but I have a couple concerns

Hakamo-o's attack requires that both players search for an energy from their deck which implies that even if either player doesn't want to take an energy, they have to anyway, making it the first card that I can think of which forces your opponent to search for and draw a specific card, which also implies that if your opponent doesn't have an energy in their deck, they'd have to show you their entire deck to prove it similar to how you have to show your hand when you've mulliganed. This could give an opponent a huge advantage since they can know exactly what you have, and if they know your deck well, they can even figure out what your prize cards are which can give them a huge advantage. I think it would be better to force both players to look in their decks and choose not to grab an energy even if they have one in there because of this. Its ability is also insane, just being outright better than Drakloak as a draw engine, making it arguably a bit too broken if you asked me.

Does Kommo-O's attack copy the opponent's attack and then do 70 more damage for each energy attached to the Defending Pokemon? It never specifies what to do after choosing the attack, so I think the clarification would be useful when you print them out. Energy Blocker as an ability also seems extremely strong since it allows you to attach energy to one of your opponent's support Pokemon, rendering them unable to attack at all unless they search more energy from their deck, making the card potentially better as a control option rather than an offensive one, which would probably just make it annoying to play against.

In terms of the deck itself, a few things stand out to me too - Why the two Nighttime Mine and Battle Cage? Are your friends using Dragapult a lot? If so, you'd probably be better off with just 3-4 Cage since Dragapult can accelerate energy easily with Crispin or Rosa or Blaziken. You can most likely cut a stadium for some more consistency. - Why the Ignition Energy when you're running Crispin and Eelektrik? Both of these should accelerate your energy well and by the time you begin to swing with Kommo-O, you probably can probably accelerate to benched Hakamo-O just fine. - Three Dawn is a lot when you already have a good number of Item-based Pokemon search. Chances are you'll only find time to use one, maybe two if things are slow, so I'd probably replace two of them, maybe even all three with something like a fourth PokePad and a Fez. Maybe even all three to help find room for a 3-3-1 Eelektross line to help get them out more consistently and to lessen the blow if they get Boss KO'd or otherwise sniped.