Opinions on my team?

So I’ve been playing through the main demo and I wonder if this is a decent enough team at this point of the games development with the lack of TMs available so I wonder what I can improve on this team

Marble the Flygon Boomburst, Bug Buzz, Ancient Roar and Drakon Voice Item : Flygonite What I think? : I think this is a standard build on Flygon with relying on sound-based moves with the problem of having an Exploud jump in and having no use so I may remove a move off of it.

Gunner the Delphox Dazzling Gleam, Flamethrower, Psychic and Shadow Ball Item : Charcoal Delphox is just an alternative special attacker for this current build of the game In terms of STAB moves and type coverage meant to deal as much damage as possible, This is a pokemon I may switch out with something else

Seaweed the Dragalge Dragon Pulse, Venoshock, Sludge Bomb, Hydro Pump Item : Black Sludge Dragalge’s purpose in this team is to deal as much damage with STAB and poison enemies with Venoshock, Venoshock may be replaced with a different move or I may put Toxic in it’s set eventually or I may just replace it altogether

Kamui the Delta Blastoise Vacuum Wave, Dark Pulse, Scald, Nasty Plot Item : Life Orb D. Blastoise is supposed to sweep teams by setting up a Nasty Plot then using Vacuum Wave to gain priority over others, Scald and Dark Pulse are used for type coverage

Siegfried the Delta Bisharp Acrobatics, Agility, Drain Punch, Blaze Kick (Maybe replacing with Thunder Punch) Item : Undecided maybe Red Card or Focus Sash/Fighting Gem (If it will be in the game in the future) D, Bisharp is going to try and outspeed everything it passes by and sweep teams with a set up of agility and acrobatics,

Lite the Delta Gallade Livewire, Thunder Punch, Icicle Crash, Leaf Blade Item : Focus Sash or Quick Claw D. Gallade is a lead with Livewire slowing everyone else down and has a really nice coverage with Thunder Punch, Icicle Crash and Leaf Blade to deal with rock or ground types that can take it down easilly. My item of choice will be Focus Sash or Quick Claw to protect it the first turn before it gets taken down.

If able give me any alternatives pokemon/moves, what items I should put on it =)

Ice weakness. Fairy weakness. Ground weakness.

Venoshock is redundant when you have sludge bomb.

Stealth Rock would help an offensive team like this.

delta blastoise or bisharp should probably go. neither have much use against fairies, and if dragalge goes down against a strong fairy team, its over. maybe metagross instead of bisharp? still will be ground issues, but it takes care of fairies very well, as well as ice.

for some reason huge power azumarill is coming to mind now. also, maybe delta luxray instead of dragalge for fairies? you need better ground coverage.

pretty good