So this is another one of my teams with a good record. Tell me if you think i should make any substitutes or w/e, im open for all criticism.
REGISTEEL
Item: Leftovers
Type: STEEL
Ability: Clear Body
Nature: Careful (+SpD, -SpA)
EVs: 252HP/100Atk/156SpD
Moveset:
Thunder Wave
Stealth Rock
Iron Head
Earthquake
VAPOREON
Item: Leftovers
Type: WATER
Ability: Water Absorb
Nature: Bold (+Def, -Atk)
EVs:188HP/252Def/68SpD
Moveset:
Wish
Protect
Surf
Hidden Power [ELETRIC]
Thanks to Vaporeons massive HP stat he can easily wall any sweeper, Physical or Special based. I decided to put the remaining 68EVs into Special Defense because i really didnt see why Vaporeon should have Speed EVs, and besides it helps Vaporeon's walling capabilities. normally Vaporeon counters Hetrans as I've seen numerous Heatrans. HP eletric is to OHKO Gyarados which can be very helpful in stopping a Gyarados sweep.
Vaporeon's weaknesses are ELETRIC and GRASS attacks. For Vaporeon's ELETRIC weakness you should switch to FLYGON or you can switch to SHAYMIN if you can set up a sub seeding opportunity. For Vaporeon's GRASS weakness you should switch to either REGISTEEL, SHAYMIN, JIRACHI, or ZAPDOS.
SHAYMIN
Item: Leftovers
Type: GRASS
Ability: Natural Cure
Nature: Timid (+Spe, -Atk)
EVs:252HP/6SpA/252Spe
Moveset:
Substitute
Leech Seed
Seed Flare
Hidden Power [FIRE]
ZAPDOS
Item: Leftovers
Type: ELETRIC/FLYING
Ability: Pressure
Nature: Bold (+Def, -Atk)
EVs:252HP/252Def/6Spe
Moveset:
Thunderbolt
Hidden Power [ICE]
Heat Wave
Roost
FLYGON
Item: Choice Scarf
Type: GROUND/DRAGON
Ability: Levitate
Nature: Adamant (+Atk, -SpA)
EVs:6HP/252Atk/252Spe
Moveset:
Earthquake
Outrage
U-Turn
Stone Edge
JIRACHI
Item: Choice Specs
Type: STEEL/PSYCHIC
Ability: Serene Grace
Nature: Timid (+Spe, -Atk)
EVs:80HP/252SpA/176Spe
Moveset:
Psychic
Grass Knot
Hidden Power[GROUND]
Trick
AT FIRST GLANCE:






IN DEPTH LOOK:

REGISTEEL
Item: Leftovers
Type: STEEL
Ability: Clear Body
Nature: Careful (+SpD, -SpA)
EVs: 252HP/100Atk/156SpD
Moveset:
Thunder Wave
Stealth Rock
Iron Head
Earthquake
This Lead is a very good lead for all Tiers, not just UU. With this Registeel you want to open off with paralyzing your opponent with Thunder Wave. After paralyzing set up Stealth Rock. If your opponent keeps a pokemon out thats paralyzed take advantage of the opportunity and try para flinchiing your opponent with Iron Head. I would highly recommend saving this pokemon for later in the game, as Registeel can help wall certain moves that other pokemon in this team are weak to.
Registeel is weak to FIRE, GROUND, and FIGHTING type moves. For Registeel's FIRE weakness you should switch to either VAPOREON or FLYGON. Registeel's GROUND weakness is best answered by ZAPDOS and FLYGON, but you can also use SHAYMIN only if you see an opening to sub seed your opponent effectively. Registeel's FIGHTING weakness should be countered by ZAPDOS.

VAPOREON
Item: Leftovers
Type: WATER
Ability: Water Absorb
Nature: Bold (+Def, -Atk)
EVs:188HP/252Def/68SpD
Moveset:
Wish
Protect
Surf
Hidden Power [ELETRIC]
Thanks to Vaporeons massive HP stat he can easily wall any sweeper, Physical or Special based. I decided to put the remaining 68EVs into Special Defense because i really didnt see why Vaporeon should have Speed EVs, and besides it helps Vaporeon's walling capabilities. normally Vaporeon counters Hetrans as I've seen numerous Heatrans. HP eletric is to OHKO Gyarados which can be very helpful in stopping a Gyarados sweep.
Vaporeon's weaknesses are ELETRIC and GRASS attacks. For Vaporeon's ELETRIC weakness you should switch to FLYGON or you can switch to SHAYMIN if you can set up a sub seeding opportunity. For Vaporeon's GRASS weakness you should switch to either REGISTEEL, SHAYMIN, JIRACHI, or ZAPDOS.

SHAYMIN
Item: Leftovers
Type: GRASS
Ability: Natural Cure
Nature: Timid (+Spe, -Atk)
EVs:252HP/6SpA/252Spe
Moveset:
Substitute
Leech Seed
Seed Flare
Hidden Power [FIRE]
This shaymin is very good at setting up on any wall. Shaymin can create a lot of problems for Blissey as her Seismic Toss cant break Shaymins Substitute of 101Hp. Skarmorys will have a hard time with Shaymins Hidden power type, and HP fire OHKO's Adamant Scizors (252Atk/252Spe). Seed Flare easily 2HKO's Vaporeon's and Suicunes. Not to mention a simple OHKO on swamperts.
Shaymins weaknesses are Fire, ICE, BUG, POISON, and FLYING. For Shaymin's FIRE weakness you can switch to either VAPOREON or FLYGON. ICE should be answered by REGISTEEL, VAPOREON, or JIRACHI. Shaymin's BUG weakness should be met by REGISTEEL or ZAPDOS. POISON is easily answerd by REGISTEEL and JIRACHI. Shaymin's FLYING weakness should be answered by REGISTEEL, ZAPDOS, or JIRACHI.

ZAPDOS
Item: Leftovers
Type: ELETRIC/FLYING
Ability: Pressure
Nature: Bold (+Def, -Atk)
EVs:252HP/252Def/6Spe
Moveset:
Thunderbolt
Hidden Power [ICE]
Heat Wave
Roost
Zapdos is by far my favorite Bulky wall. This set gives you 384HP and 294Def. this Zapdos is very good at walling Scizors and Brelooms. i chose Hidden Power [ICE] because Shaymins already equipped with a Grass attack, and most people like sending Dragons out against Zapdos.
Zapdos' weaknesses are ICE and ROCK. ICE is best countered with REGISTEEL, VAPOREON, or JIRACHI. Zapdos' ROCK weakness would be best countered by REGISTEEL or JIRACHI.

FLYGON
Item: Choice Scarf
Type: GROUND/DRAGON
Ability: Levitate
Nature: Adamant (+Atk, -SpA)
EVs:6HP/252Atk/252Spe
Moveset:
Earthquake
Outrage
U-Turn
Stone Edge
I like Flygon for its decent Speed and Attack. Flygon is best for OHKO on Heatrans and Jolteons. This pokemons biggest enemies are Donphans, Mamoswines and Weaviles. Use this pokemon wisely as he can easily be OHKO'd but any pokemon with HP ICE. So i recommend only using his heavy attacks if you are certain of a OHKO, if not be safer then sorry and just U-Turn out.
Flygon's weaknesses are ICE and DRAGON type attacks. For ICEattacks you should switch to REGISTEEL, VAPOREON or JIRACHI. DRAGON type attacks are best handled by REGISTEEL or JIRACHI.

JIRACHI
Item: Choice Specs
Type: STEEL/PSYCHIC
Ability: Serene Grace
Nature: Timid (+Spe, -Atk)
EVs:80HP/252SpA/176Spe
Moveset:
Psychic
Grass Knot
Hidden Power[GROUND]
Trick
This set for Jirachi is ment to criple Blisseys by switching Choice Specs and Leftovers with eachother. If you feel more liek using this Jirachi as a pure sweeper then you can stick to using the Choice Specs to your advantage. I havent really had to use this pokemon to much. But it does pull off a successful 2HKO on a Suicune (1 Calm Mind up) with Grass Knot.
Jirachi is weak to FIRE and GROUND. FIRE is best met by VAPOREON and FLYGON. Jirachi's GROUND weakness should be countered by ZAPDOS, FLYGON or SHAYMIN.
Well thats my team. Thanks for taking the time to look over my pokemon. Please help me out and tell me if you have and better pokemon to fill in for others, or alternate EV spreads, or anything im open to all critisism.
Thanks