Groudon @ Leftovers
Ability: Drought
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Earthquake
- Stealth Rock
- Toxic
- Roar
Groudon is my Physical wall / tank of the team. It puts up the sun which lets me hit harder with Fire-type moves. Roaring out a Pokemon that attempts to setup can be crucial and Groudon has the bulk to do it effectively use it combination with Stealth Rock for entry hazard damage that could lead to later game clean sweep. I decided Toxic was good on here because I don't have any other Pokemon with status infliction moves so getting off that Toxic is important to wear down Pokemon like "Lugia" and "Xerneas" that give this team problems.

Ho-Oh @ Choice Band
Ability: Regenerator
EVs: 248 HP / 252 Atk / 8 Spe
Adamant Nature
- Brave Bird
- Sacred Fire
- Earthquake
- Sleep Talk
I really find Ho-Oh to be the best Pokemon to lead off with my team. Many leads setup with Steal Rock and we don't always want to switch into that later, but by using it as a lead I can start dealing major damage to opponents with this "Choice Band" slapped on it. With the Attack Ho-Oh has it can OHKO many things and has the defenses to take blows. Sacred Fire has a 50% chance of burn and since Focus Sash leads are a thing I'll usually deal 99% with that chance of burn to take it out. Due to having Regenerator Ho-Oh can do a few Brave Birds and be saved for later. That Sunny boost from Groudon makes this even a greater threat. By having Sleep Talk Ho-Oh can be a good sleep status absorber. Darkrai leads may need to think twice before putting this Pokemon asleep.

Sylveon @ Leftovers
Ability: Pixilate
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
- Wish
- Protect
- Heal Bell
- Hyper Voice
While Xerneas seems to be the most dominate Fairy-type Pokemon of the Uber tier I find that Sylveon has great use for my team. Like I said earlier Lugia is a problem and most pack Toxic by having Heal Bell it can help keep my Pokemon alive longer from problematic statuses. Wish passing to other Pokemon is also important as it helps keep some of my Pokemon alive especially Ho-Oh since I may have to take the Stealth Rock damage at times. I'm mainly using Sylveon for the team support it provides my team with.

Giratina-Origin @ Griseous Orb
Ability: Levitate
EVs: 180 Atk / 252 SpA / 76 Spe
Rash Nature
- Draco Meteor
- Shadow Sneak
- Dragon Tail
- Defog
Giratina is great for it's defog support and sometimes it lets switch safely against Arceus which is my opinion the most overpowered Uber Pokemon. Getting off that Defog while Stealth Rock out is very important as I don't want to be racking up Stealth Rock damage and causing death to my Ho-Oh. Dragon Tail for some reason catches my opponents off guard as I'm able to phaze them when they attempt to setup on me. Shadow Sneak helps me deal with something like Mewtwo later in battle and it's also important because I don't run any Pokemon that are really fast on my team.

Palkia @ Choice Specs
Ability: Pressure
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Hydro Pump
- Draco Meteor
- Spacial Rend
- Thunder
Thanks to whoever suggested this to my team as I made the change to add it my team has been working much better. Palkia deals with Kyogre because without it would be near impossible to switch into Kyogre safely as Water Spout can like 2HKO anything I have when it's at full HP. Due to the Dragon/Water typing Palkia is truly a solid counter as it instantly scares it away with Thunder. While it may conflict a little due to having Sun on this team. I don't think I could safely deal with Kyogre otherwise which was previously giving my team major problems.
Now for the last Pokemon I would like a setup sweeper however, I haven't finalized my decision...

Arceus @ Life Orb
Ability: Multitype
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Extreme Speed
- Earthquake
- Overheat
The Extreme Killker is Arceus's most scary variant. I get off a Swords Dance I can sweep late game with ease. It has the speed outspeed many things and bulk to take a blow to setup. This is the most versatile Pokemon the Uber tier has to offer I believe. I run Overheat as it kills Steel/Bug hybrids faster and does more damage thanks to the sun.

I have not placed Scizor on this team yet, but I feel like it would help me against Xerneas which is a big problem to my team, but then again I have ways to deal with. So what do you guys think?