So yes, this is a new account, but by all means, I'm not new to Pokemon. However, I'm somewhat new to the tier, but I've made it pretty far on the Ubers ladder (currently at #30). I thought I'd share this team because it does extremely well in the hands a good player and stacks up well against most of the centralizing threats in Ubers at the moment, although the team itself is somewhat standard:
Centralizing God (Groudon) @ Red Orb
Ability: Drought
EVs: 248 HP / 32 Atk / 228 Def
Lax Nature
- Stealth Rock
- Earthquake/Precipice Blades
- Lava Plume
- Thunder Wave
I LOVE ORBS!!!! (Kyogre) @ Blue Orb
Ability: Drizzle
EVs: 248 HP / 208 SpA / 52 Spe
Modest Nature
- Origin Pulse/Scald
- Thunder
- Ice Beam
- Water Spout
JennYveltal (Yveltal) @ Leftovers
Ability: Dark Aura
EVs: 252 HP / 172 Def / 84 Spe
Impish Nature
- Foul Play
- Roost
- Toxic
- Taunt
Fairy God (Xerneas) @ Choice Scarf
Ability: Fairy Aura
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Moonblast
- Sleep Talk
- Thunder/NO Move
- Hidden Power [Fire] / Focus Blast/ NO MOVE
Piss God (Arceus) @ Silk Scarf
Ability: Multitype
Shiny: Yes
EVs: 244 HP / 252 Atk / 12 Spe
Adamant Nature
- Swords Dance
- Facade/Shadow Claw/Force
- ExtremeSpeed
- Earthquake
OH NO KEYS! (Klefki) @ Light Clay
Ability: Prankster
Shiny: Yes
EVs: 248 HP / 8 Def / 252 SpD
Careful Nature
- Spikes
- Thunder Wave
- Light Screen
- Reflect
Let me explain how this team works a little bit:
Groudon:
This is basically your standard defensive Groudon with Lava plume over Fire Punch (so mixed) because it doesn't take Rocky Helmet + Iron Barbs damage from Ferrothorn, and it takes anything that's relatively fragile and has Levitate such as Gengar, etc, plus a good chance to burn anything in case you need it. It can catch a number of its switch-ins and paralyze them, set up Stealth Rocks, and do massive damage with Earthquake (you can run Precipice Blades if you really want I suppose).
Kyogre:
Kyogre is on this team because I actually needed an initial switch-in for other Kyogres (before this, I had a Mega Diancie, but that can't switch into any of Kyogre's standard attacks. Anyways, this basically is just your standard bulky max sp. att, max HP with some speed creep thrown in. It does massive damage to its switch-ins, barring Primal Groudon, of course; you can whittle it down with Ice Beam though. There's not much to be said here besides the fact it's stupidly powerful.
Yveltal:
This is the Pokemon that makes this team work. Defensive Yveltal is one of the up and coming standard Pokemon to arrive in Ubers, and there are a few reasons why: E-killer, M-Salamence, Rayquaza, and Primal Groudon. Barring some kind of gimmick or luck, Defensive Yveltal beats all three of these as long as they haven't boosted an incredible amount, or if Yveltal is low on health. Foul Play will hit all of these hard on a switch-in, and prevent them from setting up or punish them if they attempt to. Taunt prevents other support Pokemon from doing anything to you, and you can respond with a Toxic or recover with Roost.
Xerneas:
With geomancy being so popular now, I bet a lot of people are questioning my choice to use Scarf Xerneas. And I bet they are confused with that last slot. Let me explain.
I suppose in theory you could use geomancy, but because it's almost assumed, no one expects Scarf Xerneas. Lead Deoxys will attempt to taunt you, and, out-speeding it, you will land a OHKO if it's not sashed. It will also outspeed most standard Xerneas's at +2 from Geomancy, so if needed, it can get off a lot of damage from the turn of set up and then after if you need to sacrifice a Pokemon. Most standard Darkrai, even leads, don't run Focus Sash either, and will attempt to put you to sleep. You can either bring it down to its sash or take it out completely. That's why you have Sleep Talk. This lets your Xerneas be sleep fodder and potentially important in the end game. Now, what the heck is with the empty slots?
I find that I never use Thunder, and Hidden Power Fire is never ever used. I've been considering using focus blast, but Moonblast usually gets the job done. The upside to only having Moonblast and Sleep Talk is that when you are asleep, the game has to go for Moonblast. You can change these around according to your preferences.
Arceus:
This is your standard bulky E-Killer with a twist: It has Facade. What?
Yup. Basically, Chansey and Blissey were a huge problem with this team as soon as I built it. I wanted something that wouldn't mind status moves as much, and could still hit hard. And +2 Facade does just that. When you are Badly Poisoned, or the opponent is nice and leaves just one layer of Toxic Spikes for you, this move becomes 140 Base Power. At plus 2, those little pink blobs won't know what hit them. Same with anything else that is slower than Arceus. It also means that Arceus is still a threat even when its paralyzed or GASP Burned. You can change this up to something like Shadow Claw or Shadow Force if you're not ballsy enough to go with Facade, but I find it's extremely satisfying.
Klefki:
This is your immediate Xerneas switch-in. It has amazing support for the rest of the team with T-wave, dual screens, and spikes. It can basically switch in on Xerneas, cripple it with t-wave with assurance, and if you can, set up Light Screen and spikes for the next switch in to take it out. It can come in late-game and paralyze something as well. It's just a great Pokemon, I'm not surprised it's A rank.
Here's a preview of this team in action:
http://replay.pokemonshowdown.com/ubers-228610361 SolaceAcheron Vs. Beautiful Circus (was #3 at the time).
This team often has trouble with Ground and Rock Arceus, as well as Jolly Swords Dance Primal Groudon. But you will still win a lot of matches, and the team is easy to use. Enjoy!

Centralizing God (Groudon) @ Red Orb
Ability: Drought
EVs: 248 HP / 32 Atk / 228 Def
Lax Nature
- Stealth Rock
- Earthquake/Precipice Blades
- Lava Plume
- Thunder Wave

I LOVE ORBS!!!! (Kyogre) @ Blue Orb
Ability: Drizzle
EVs: 248 HP / 208 SpA / 52 Spe
Modest Nature
- Origin Pulse/Scald
- Thunder
- Ice Beam
- Water Spout

JennYveltal (Yveltal) @ Leftovers
Ability: Dark Aura
EVs: 252 HP / 172 Def / 84 Spe
Impish Nature
- Foul Play
- Roost
- Toxic
- Taunt

Fairy God (Xerneas) @ Choice Scarf
Ability: Fairy Aura
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Moonblast
- Sleep Talk
- Thunder/NO Move
- Hidden Power [Fire] / Focus Blast/ NO MOVE

Piss God (Arceus) @ Silk Scarf
Ability: Multitype
Shiny: Yes
EVs: 244 HP / 252 Atk / 12 Spe
Adamant Nature
- Swords Dance
- Facade/Shadow Claw/Force
- ExtremeSpeed
- Earthquake

OH NO KEYS! (Klefki) @ Light Clay
Ability: Prankster
Shiny: Yes
EVs: 248 HP / 8 Def / 252 SpD
Careful Nature
- Spikes
- Thunder Wave
- Light Screen
- Reflect
Let me explain how this team works a little bit:
Groudon:
This is basically your standard defensive Groudon with Lava plume over Fire Punch (so mixed) because it doesn't take Rocky Helmet + Iron Barbs damage from Ferrothorn, and it takes anything that's relatively fragile and has Levitate such as Gengar, etc, plus a good chance to burn anything in case you need it. It can catch a number of its switch-ins and paralyze them, set up Stealth Rocks, and do massive damage with Earthquake (you can run Precipice Blades if you really want I suppose).
Kyogre:
Kyogre is on this team because I actually needed an initial switch-in for other Kyogres (before this, I had a Mega Diancie, but that can't switch into any of Kyogre's standard attacks. Anyways, this basically is just your standard bulky max sp. att, max HP with some speed creep thrown in. It does massive damage to its switch-ins, barring Primal Groudon, of course; you can whittle it down with Ice Beam though. There's not much to be said here besides the fact it's stupidly powerful.
Yveltal:
This is the Pokemon that makes this team work. Defensive Yveltal is one of the up and coming standard Pokemon to arrive in Ubers, and there are a few reasons why: E-killer, M-Salamence, Rayquaza, and Primal Groudon. Barring some kind of gimmick or luck, Defensive Yveltal beats all three of these as long as they haven't boosted an incredible amount, or if Yveltal is low on health. Foul Play will hit all of these hard on a switch-in, and prevent them from setting up or punish them if they attempt to. Taunt prevents other support Pokemon from doing anything to you, and you can respond with a Toxic or recover with Roost.
Xerneas:
With geomancy being so popular now, I bet a lot of people are questioning my choice to use Scarf Xerneas. And I bet they are confused with that last slot. Let me explain.
I suppose in theory you could use geomancy, but because it's almost assumed, no one expects Scarf Xerneas. Lead Deoxys will attempt to taunt you, and, out-speeding it, you will land a OHKO if it's not sashed. It will also outspeed most standard Xerneas's at +2 from Geomancy, so if needed, it can get off a lot of damage from the turn of set up and then after if you need to sacrifice a Pokemon. Most standard Darkrai, even leads, don't run Focus Sash either, and will attempt to put you to sleep. You can either bring it down to its sash or take it out completely. That's why you have Sleep Talk. This lets your Xerneas be sleep fodder and potentially important in the end game. Now, what the heck is with the empty slots?
I find that I never use Thunder, and Hidden Power Fire is never ever used. I've been considering using focus blast, but Moonblast usually gets the job done. The upside to only having Moonblast and Sleep Talk is that when you are asleep, the game has to go for Moonblast. You can change these around according to your preferences.
Arceus:
This is your standard bulky E-Killer with a twist: It has Facade. What?
Yup. Basically, Chansey and Blissey were a huge problem with this team as soon as I built it. I wanted something that wouldn't mind status moves as much, and could still hit hard. And +2 Facade does just that. When you are Badly Poisoned, or the opponent is nice and leaves just one layer of Toxic Spikes for you, this move becomes 140 Base Power. At plus 2, those little pink blobs won't know what hit them. Same with anything else that is slower than Arceus. It also means that Arceus is still a threat even when its paralyzed or GASP Burned. You can change this up to something like Shadow Claw or Shadow Force if you're not ballsy enough to go with Facade, but I find it's extremely satisfying.
Klefki:
This is your immediate Xerneas switch-in. It has amazing support for the rest of the team with T-wave, dual screens, and spikes. It can basically switch in on Xerneas, cripple it with t-wave with assurance, and if you can, set up Light Screen and spikes for the next switch in to take it out. It can come in late-game and paralyze something as well. It's just a great Pokemon, I'm not surprised it's A rank.
Here's a preview of this team in action:
http://replay.pokemonshowdown.com/ubers-228610361 SolaceAcheron Vs. Beautiful Circus (was #3 at the time).
This team often has trouble with Ground and Rock Arceus, as well as Jolly Swords Dance Primal Groudon. But you will still win a lot of matches, and the team is easy to use. Enjoy!