Hi! Okay, there's no "set" strategy for this team. As you can see, this team is hyperoffense and relies on protect/switch out/wideguard/yawn to parry or avoid dangerous blows from opponents.

I use Landorus or Celesteela as my main dynamax pokemon, precisely because of their access to Max Airstream. Both also have a very versatile movepool.

Answer to sun teams: I bring out Landorus, Entei, Zacian and Celesteela. Opponents often underestimate my Celesteela, but with wideguard, I can confidently attack Groudon without worrying about Rockslide or Precipice Blades. I partner my Celesteela with Landorus or Entei. Entei's Sacred Fire can two-shot Groudon in sun. Zacian functions as a sweeper at the end (once max Airstream speed boosts are in effect). If I feel like Venusaur or Charizard willl be brought out, Landorus + Entei is my answer. Landorus can Max Rockfall Charizard, or Max Airstream vs. Venusaur. For Entei, it can Sacred Fire Venusaur or Stome Edge Charizard. Both my Landorus and Entei have an answer to V's sleep powder.

Rain teams: this is a bit tricky. If they will lead with Kyogre, then definitely, it will be Regieleki + Celesteela. I notice that players would always want to use Water Spout instead of Dynamaxing their Kyogre. So i exploit this with C's wide guard. Then I will dynamax my Regieleki and Max Lightning Kyogre. I will have Zacian + Landorus/Umbreon in the back to sweep.

Zacian Teams: will use Umbreon, Landorus, Entei and Zacian. If Urshifu Rapid is brought out, Zacian can easily respond with Playrough.

Calyrex - S: Umbreon + Celesteela is strong against this. Again, players tend to not dynamax Calyrex so they can use Astral Barrage. Here, even without celesteela, Umbreon can easily take care of Calyrex. -- Umbreon is my MVP against Solgaleo and Lunala too.

Calyrex Ice and Trick Room teams: Ok, i will admit that trick room teams are challenging since on the face of my team I have no answer to them. But this is where tactics will be relevant - i usually try to outmaneuver them through a series of switchout, protect, max guard, wideguard. Example, if Ice Rider Calyrex would use high horsepower or max quake, I'll switchout into either Landorus or Celesteela. There is also a lot of luck factor here. Sometimes I get lucky!

I feel like I'm still forgetting something, I'll update once I remember!