Need help with this team; constructive criticism is needed.
Togekiss @ Leftovers
Trait: Serene Grace
EVs: 26 Def / 230 HP / 252 SDef
Calm Nature (+SpD, -Atk)
- Roost
- Heal Bell
- Thunder Wave
- Air Slash
This is my special wall that creates stall. Abusing it's amazing ability Serene Grace, I can usually flinch the opposing foes. With the addition of Thunder Wave, it makes it quite easy to flinch and parahax opponents. Roost and Heal Bell are to preserve Togekiss, especially since status really hurts my team. Calm nature with max special defense makes it survive most special attacks. 26 EV's in defense are to take physical hits a bit better. 230 EV's to HP to gain the max amount of leftovers recovery. I heavily rely on Togekiss if my Zoroark is taken out by mis-predicting on my part. Togekiss is really the most expendable pokemon on my team. Before this, I had used a second physical attacked, but two walls just did not cut it for my team. This 3rd wall is just used to stall out revenge killers and bulky water and grass types, bar Swampert and Lanturn.
Hitmontop @ Leftovers
Trait: Intimidate
EVs: 252 HP / 252 Def / 4 Atk
Impish Nature (+Def, -SpA)
- Foresight
- Rapid Spin
- Mach Punch
- Toxic
Hitmontop is my physical wall of my team. Running intimidate with max defense to survive most physical attacks even with +2. Rapid spin support is important since my offense pokemon are already frail and every bit of HP helps. Foresight is to nab rapid spinning on Ghost types while being able to hit it with Mach Punch since most Ghosts are specially oriented (Except for Confag). Toxic is to take care of bulky walls that aren't immune to it. Leftovers is there for obvious reasons. I invested all EV's in HP and Defense because Hitmontop isn't as bulky as other physical walls, but it basically puts up a temporarily reflect for one pokemon. 4 EV's in attack is for the boosted Mach Punch.
Bronzong @ Leftovers
Trait: Levitate
EVs: 252 HP / 4 Atk / 252 SDef
Sassy Nature (+SpD, -Spe)
- Hidden Power [Ice]
- Gyro Ball
- Earthquake
- Stealth Rock
This is my main special wall of my team. It has 2 immunities and a lot of resistances and only one weakness. Hidden Power Ice is to deal with Flygon's and Gligar's running around, 2HK'ing them both when they are at 100%. Gyro ball with 0 Spe IV's and negative speed nature maximizes the attack, being able to 3HK all speedy ad bulky threats. Earthquake is for predicting the incoming fire types and stealth rock is for residual hazard damage. Max HP and Special Defense are used since Bronzong does not have any reliable type of recovery. 4 EV's in attack are to boost Gyro and EQ. I chose HP Ice over Zen Headbutt because Ice provides better coverage since Dark types are a good switch counter to Bronzong. I chose Bronzong over Claydol because only burning it will hurt it. TWave is great for me, and I never have to worry about toxic unless someone changes me into a water type, but even then, I can switch into Togekiss to absorb and heal bell.
Zoroark @ Choice Scarf
Trait: Illusion
EVs: 252 Spd / 252 SAtk / 4 SDef
Timid Nature (+Spe, -Atk)
- Night Daze
- Flamethrower
- Focus Blast
- Extrasensory
I disguise Zoroark as Mismagius to bait other ghost types to come out. Timid nature, max speed with scarf lets it be one of the fastest revenge killers. 252 SAtk allows it to 2HK practically all non-special walls. 4SDef is to deny P2 and PZ of it's special attack boost. Night Daze lowers accuracy which is AMAZING. Flamethrower is for coverage. Focus Miss and Extrasensory combined with NDaze gives it perfect neutral coverage. Again, Flamethrower is mostly for Bronzong, other than that, I would have HP Ice. I like Zoroark because since it looks like Mismagius, I can easily out-predict most average players.
Bisharp @ Leftovers
Trait: Defiant
EVs: 252 Spd / 252 Atk / 4 HP
Adamant Nature (+Atk, -SpA)
- Swords Dance
- Sucker Punch
- Iron Head
- Brick Break
This pokemon has caused more people to rage quit since Stalling Whimscott. It has great synergy with Mismaguis, as they both cover each other's weaknesses. Adamant nature with max attack allows it to tear through most standard walls. Swords Dance is on the predicted switch. Sucker Punch is for choice pokemon. Iron Head is for secondary STAB. Brick Break is for coverage. I would prefer Night Slash over Brick Break, but fighting allows it to break through other dark and normal types. Sucker Punch is used seldom due to its low PP count. I only set Bisharp up once Togekiss has spread Thunder Wave around.
Mismagius @ Life Orb
Trait: Levitate
EVs: 252 Spd / 4 HP / 252 SAtk
Timid Nature (+Spe, -Atk)
- Nasty Plot
- Shadow Ball
- Psychic
- Hidden Power [Fighting]
It is immune to the weakness of Bisharp and Bisharp resists most of Mismagius' weaknesses. Nasty Plot gives it instant power combined with Life Orb allows it to 3HK Snorlax at full HP. Timid Nature is to outpace most non-scarfed pokemon. Shadow Ball is for STAB. Psychic and HP Fighting, like Zoroark , provides perfect neutral coverage. The 4 HP EV's are thrown there for no reason.
My team has many flaws against stall teams and set up sweepers, anyway to deal with it?

Togekiss @ Leftovers
Trait: Serene Grace
EVs: 26 Def / 230 HP / 252 SDef
Calm Nature (+SpD, -Atk)
- Roost
- Heal Bell
- Thunder Wave
- Air Slash
This is my special wall that creates stall. Abusing it's amazing ability Serene Grace, I can usually flinch the opposing foes. With the addition of Thunder Wave, it makes it quite easy to flinch and parahax opponents. Roost and Heal Bell are to preserve Togekiss, especially since status really hurts my team. Calm nature with max special defense makes it survive most special attacks. 26 EV's in defense are to take physical hits a bit better. 230 EV's to HP to gain the max amount of leftovers recovery. I heavily rely on Togekiss if my Zoroark is taken out by mis-predicting on my part. Togekiss is really the most expendable pokemon on my team. Before this, I had used a second physical attacked, but two walls just did not cut it for my team. This 3rd wall is just used to stall out revenge killers and bulky water and grass types, bar Swampert and Lanturn.

Hitmontop @ Leftovers
Trait: Intimidate
EVs: 252 HP / 252 Def / 4 Atk
Impish Nature (+Def, -SpA)
- Foresight
- Rapid Spin
- Mach Punch
- Toxic
Hitmontop is my physical wall of my team. Running intimidate with max defense to survive most physical attacks even with +2. Rapid spin support is important since my offense pokemon are already frail and every bit of HP helps. Foresight is to nab rapid spinning on Ghost types while being able to hit it with Mach Punch since most Ghosts are specially oriented (Except for Confag). Toxic is to take care of bulky walls that aren't immune to it. Leftovers is there for obvious reasons. I invested all EV's in HP and Defense because Hitmontop isn't as bulky as other physical walls, but it basically puts up a temporarily reflect for one pokemon. 4 EV's in attack is for the boosted Mach Punch.

Bronzong @ Leftovers
Trait: Levitate
EVs: 252 HP / 4 Atk / 252 SDef
Sassy Nature (+SpD, -Spe)
- Hidden Power [Ice]
- Gyro Ball
- Earthquake
- Stealth Rock
This is my main special wall of my team. It has 2 immunities and a lot of resistances and only one weakness. Hidden Power Ice is to deal with Flygon's and Gligar's running around, 2HK'ing them both when they are at 100%. Gyro ball with 0 Spe IV's and negative speed nature maximizes the attack, being able to 3HK all speedy ad bulky threats. Earthquake is for predicting the incoming fire types and stealth rock is for residual hazard damage. Max HP and Special Defense are used since Bronzong does not have any reliable type of recovery. 4 EV's in attack are to boost Gyro and EQ. I chose HP Ice over Zen Headbutt because Ice provides better coverage since Dark types are a good switch counter to Bronzong. I chose Bronzong over Claydol because only burning it will hurt it. TWave is great for me, and I never have to worry about toxic unless someone changes me into a water type, but even then, I can switch into Togekiss to absorb and heal bell.

Zoroark @ Choice Scarf
Trait: Illusion
EVs: 252 Spd / 252 SAtk / 4 SDef
Timid Nature (+Spe, -Atk)
- Night Daze
- Flamethrower
- Focus Blast
- Extrasensory
I disguise Zoroark as Mismagius to bait other ghost types to come out. Timid nature, max speed with scarf lets it be one of the fastest revenge killers. 252 SAtk allows it to 2HK practically all non-special walls. 4SDef is to deny P2 and PZ of it's special attack boost. Night Daze lowers accuracy which is AMAZING. Flamethrower is for coverage. Focus Miss and Extrasensory combined with NDaze gives it perfect neutral coverage. Again, Flamethrower is mostly for Bronzong, other than that, I would have HP Ice. I like Zoroark because since it looks like Mismagius, I can easily out-predict most average players.

Bisharp @ Leftovers
Trait: Defiant
EVs: 252 Spd / 252 Atk / 4 HP
Adamant Nature (+Atk, -SpA)
- Swords Dance
- Sucker Punch
- Iron Head
- Brick Break
This pokemon has caused more people to rage quit since Stalling Whimscott. It has great synergy with Mismaguis, as they both cover each other's weaknesses. Adamant nature with max attack allows it to tear through most standard walls. Swords Dance is on the predicted switch. Sucker Punch is for choice pokemon. Iron Head is for secondary STAB. Brick Break is for coverage. I would prefer Night Slash over Brick Break, but fighting allows it to break through other dark and normal types. Sucker Punch is used seldom due to its low PP count. I only set Bisharp up once Togekiss has spread Thunder Wave around.

Mismagius @ Life Orb
Trait: Levitate
EVs: 252 Spd / 4 HP / 252 SAtk
Timid Nature (+Spe, -Atk)
- Nasty Plot
- Shadow Ball
- Psychic
- Hidden Power [Fighting]
It is immune to the weakness of Bisharp and Bisharp resists most of Mismagius' weaknesses. Nasty Plot gives it instant power combined with Life Orb allows it to 3HK Snorlax at full HP. Timid Nature is to outpace most non-scarfed pokemon. Shadow Ball is for STAB. Psychic and HP Fighting, like Zoroark , provides perfect neutral coverage. The 4 HP EV's are thrown there for no reason.
My team has many flaws against stall teams and set up sweepers, anyway to deal with it?