https://pokepast.es/316ba475f10210c6
I call this team the no fun allowed team
Welcome to Smogon. Unfortunately, while I'm not part of the group that picks teams to add to this thread's OP, I think I can confidently say that this team has too many issues to be a sample team.
Every moveset is non-standard to the point of being suboptimal, so I might at least try and help you pick better sets. Mixed Arceus with Focus Blast and Iron Head without a boosting move isn't achieving very much. Focus Blast would be very weak and Iron Head barely hits anything. You would be better off using Swords Dance Extreme Killer Arceus here. Darkrai is already bad enough with a more standard set, but Hypnosis + Nightmare + Dream Eater Darkrai is both unreliable and extremely gimmicky. All the enemy has to do is switch out and at least half of your moveset becomes useless. Dialga is better off as a Stealth Rock user (and even then is quite niche these days) and has no business running two Steel-type moves (or any really). Primal Groudon's moveset is both redundant (Brick Break hits nothing Primal Groudon's STABs already cover) and suboptimal (Earthquake and Flamethrower are not particularly great). If you're going to run a Kyogre with Earthquake, run Liquidation / Earthquake / Ice Beam / Thunder with max investment in Attack and Speed. Finally, the Deoxys-Attack moveset isn't very good at all. Deoxys-Attack's best option these days is a Psycho Boost / Ice Beam / Superpower set with your choice of Dark Pulse or Pursuit, max SpA / Spe EVs, and a nature that lowers one of its defensive stats in favour of Speed.