This is my second OU Team post, and after many, many test teams I came up with this team, a mix of offensive pokemon with some bulk behind it, along with a lot of surprise factor to give me the upper edge.
(With the current edits that have been suggested, this team is starting to look like a "Offensive stall team")
*BOLD is a EDIT*
Roserade @ Focus Sash
Ability: Natural Cure
Evs: 4 HP/ 252 Spd/ 252 SAtk
Timid nature
-Sleep Powder
-Toxic Spikes
-Leaf Storm
-HP [Fire]
My new lead replacing Machamp, a much faster lead, Sleep Powder will make short work of slower leads, while Toxic spikes will make Stalling for Hearten alot more easier.
I choose HP fire to deal with any steel walls that could wall this set.
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Speedy (Heatran) (M) @Leftovers
Ability: Flash Fire
EVs: 244 HP/220 Spd/32 SAtk/ 12Sdef
Calm nature
-Substitute
-Torment
-Protect
-Lava Plume
Many people expect a scarf Heatran these days, this one however is a pure annoyance, and once it forces a switch, can sub up and Torment whatever my opponent switches in, giving Tyranitar are free switch in to set up.
He also makes a great scout for the sets of Pokemon, making prediction a lot easier.
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Rotom- H@ Leftovers
Ability: Levitate
EVs: 242HP/ 188Spd/ 72Def
Timid Nature
-Substitute
-ThunderBolt
-Will O Wisp
-PainSplit
With Toxic spikes and Stealth rock on my opponents feild, i needed something to block any attempts at a rapid spin, so i decided to replace my celebi with a Rotom form, i great support pokemon with great speed under its belt.
As suggested, I decided to change Rotom-H a more stally set, Will O Wisp works well against any steels or levitating pokemon that come in and think there safe from toxic spikes, and the combo of painsplit and substitute will stall out a lot of pokemon that get poised by toxic spikes.
(I still have to test this Rotom set out more, but is working good so far).
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Leftovers (Tyranitar) (M) @ChoiceScarf
Ability: Sand Stream
EVs: 4HP/ 252Atk/ 252Spd
Jolly nature
-Stone Edge
-Crunch
-Super Power
-Pursuit
It was pointed out that my team did in fact have a rather large Gengar and Latais weaknes, so my DD tar has been replaced with a Scarf tar, and I have found he is a rather effective revenge killer and a good check for threats such as Gengar, Latias.
I choose Super Power over Earthquake to tear through Blissy, Snorlax and other Tyranitars that are not scarfed, while pursuit traps any gengar that doesn't see him coming.
GoldyLocks (Latias) (F)@ Choice Scarf
Ability: Levitate
EVs: 4 HP/252 Spd/252 SAtk
Timid nature
-Draco Meteor
-Thunderbolt
-Trick
-Surf
My revenge Killer, I was originally going to go for the Starmie scarf set, but found latias to have a lot more bulk and power, plus she pairs well with my next Pokemon.
She does wonders against putting Gyradose in check with ThunderBolt, and if Salamence thinks he can DD in my face, not while I have Latais he wont.
Once any threats have been taken care of, i can simply trick my scarf onto a wall such as blissy or Bronzong.
* Im wondering if someone could suggest another Set or replacement for Latais, since I don't really need 2 scarfed pokemon, and Tyranitar does Latais's job rather well.*
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CaptainOuch (Bronzong)@ Macho Brace
Ability: Levitate
Evs: 252 HP/ 126 Def/ 128 SDef
Sassy nature
-Trick
-Gyro Ball
-Earthquake
-Stealth Rock
A rather different Bronzong than most people expect, with Macho Brace, Gyro Ball has alot of power behind it, 2H OKing even Infernape with stealth rock in play, and once Iv no longer need it, I can trick it to a wall or fast sweeper, making them useless for the whole match (Even if they have a god dam aroma Blissy)
Stealth rock is there for obvious reasons, and I choose Earthquake over Explosion so that Magnezone cant safely trap him.
_________________________________
Pokemon this team struggles against:
Machamp- most of my team are ether weak to fighting or dark, and with the 100% confusion it dosnt make switching in any easier, Rotom can come in on dynamic punch and set up reflect, but payback still hurts alot. I normally find I have to scarifies a weaker team member and revenge kill Machamp.
Lucario- Another fighting pokemon that causes me trouble, rotom once again is my only counter to the standard SD set, unless its Adamant which means Tyranitar can out speed it.
(With the current edits that have been suggested, this team is starting to look like a "Offensive stall team")
*BOLD is a EDIT*

Roserade @ Focus Sash
Ability: Natural Cure
Evs: 4 HP/ 252 Spd/ 252 SAtk
Timid nature
-Sleep Powder
-Toxic Spikes
-Leaf Storm
-HP [Fire]
My new lead replacing Machamp, a much faster lead, Sleep Powder will make short work of slower leads, while Toxic spikes will make Stalling for Hearten alot more easier.
I choose HP fire to deal with any steel walls that could wall this set.
-------------

Speedy (Heatran) (M) @Leftovers
Ability: Flash Fire
EVs: 244 HP/220 Spd/32 SAtk/ 12Sdef
Calm nature
-Substitute
-Torment
-Protect
-Lava Plume
Many people expect a scarf Heatran these days, this one however is a pure annoyance, and once it forces a switch, can sub up and Torment whatever my opponent switches in, giving Tyranitar are free switch in to set up.
He also makes a great scout for the sets of Pokemon, making prediction a lot easier.
-----------------

Rotom- H@ Leftovers
Ability: Levitate
EVs: 242HP/ 188Spd/ 72Def
Timid Nature
-Substitute
-ThunderBolt
-Will O Wisp
-PainSplit
With Toxic spikes and Stealth rock on my opponents feild, i needed something to block any attempts at a rapid spin, so i decided to replace my celebi with a Rotom form, i great support pokemon with great speed under its belt.
As suggested, I decided to change Rotom-H a more stally set, Will O Wisp works well against any steels or levitating pokemon that come in and think there safe from toxic spikes, and the combo of painsplit and substitute will stall out a lot of pokemon that get poised by toxic spikes.
(I still have to test this Rotom set out more, but is working good so far).
---------------

Leftovers (Tyranitar) (M) @ChoiceScarf
Ability: Sand Stream
EVs: 4HP/ 252Atk/ 252Spd
Jolly nature
-Stone Edge
-Crunch
-Super Power
-Pursuit
It was pointed out that my team did in fact have a rather large Gengar and Latais weaknes, so my DD tar has been replaced with a Scarf tar, and I have found he is a rather effective revenge killer and a good check for threats such as Gengar, Latias.
I choose Super Power over Earthquake to tear through Blissy, Snorlax and other Tyranitars that are not scarfed, while pursuit traps any gengar that doesn't see him coming.

GoldyLocks (Latias) (F)@ Choice Scarf
Ability: Levitate
EVs: 4 HP/252 Spd/252 SAtk
Timid nature
-Draco Meteor
-Thunderbolt
-Trick
-Surf
My revenge Killer, I was originally going to go for the Starmie scarf set, but found latias to have a lot more bulk and power, plus she pairs well with my next Pokemon.
She does wonders against putting Gyradose in check with ThunderBolt, and if Salamence thinks he can DD in my face, not while I have Latais he wont.
Once any threats have been taken care of, i can simply trick my scarf onto a wall such as blissy or Bronzong.
* Im wondering if someone could suggest another Set or replacement for Latais, since I don't really need 2 scarfed pokemon, and Tyranitar does Latais's job rather well.*
--------------

CaptainOuch (Bronzong)@ Macho Brace
Ability: Levitate
Evs: 252 HP/ 126 Def/ 128 SDef
Sassy nature
-Trick
-Gyro Ball
-Earthquake
-Stealth Rock
A rather different Bronzong than most people expect, with Macho Brace, Gyro Ball has alot of power behind it, 2H OKing even Infernape with stealth rock in play, and once Iv no longer need it, I can trick it to a wall or fast sweeper, making them useless for the whole match (Even if they have a god dam aroma Blissy)
Stealth rock is there for obvious reasons, and I choose Earthquake over Explosion so that Magnezone cant safely trap him.
_________________________________
Pokemon this team struggles against:
Machamp- most of my team are ether weak to fighting or dark, and with the 100% confusion it dosnt make switching in any easier, Rotom can come in on dynamic punch and set up reflect, but payback still hurts alot. I normally find I have to scarifies a weaker team member and revenge kill Machamp.
Lucario- Another fighting pokemon that causes me trouble, rotom once again is my only counter to the standard SD set, unless its Adamant which means Tyranitar can out speed it.