This is my 1st standard team. I played mono only quite some time ago, but now i'm back and wanna try a standard team this time.
So here it is:
Gyarados (M) @ Leftovers
Ability: Intimidate
EVs: 216 HP/18 Atk/176 Def/100 Spd
Adamant nature (+Atk, -SAtk)
- Waterfall
- Stone Edge
- Taunt
- Dragon Dance
Standard Bulkydos. Great opener. Taunt for things like Hippo and Zong. I chose Stone Edge over Return to counter other Gyra. Electric weakness covered by Garchomp.
---
Blissey (F) @ Leftovers
Ability: Natural Cure
EVs: 212 HP/252 Def/46 SAtk
Bold nature (+Def, -Atk)
- Softboiled
- Ice Beam
- Thunderbolt
- Calm Mind
CM Bliss. May want to replace cuz i don't find it too useful. maybe its the set.... Weakness covered by gengar.
---
Garchomp (M) @ Yache Berry
Ability: Sand Veil
EVs: 4 Atk/252 Spd/252 SAtk
Naughty nature (+Atk, -SDef)
- Draco Meteor
- Earthquake
- Fire Blast
- Swords Dance
Chain Chomp. late game sweeper. yache for those who only have 1 dragon counter and rely highly on the ohko.
---
Tangrowth (M) @ Leftovers
Ability: Chlorophyll
EVs: 252 HP/228 Def/28 Spd
Impish nature (+Def, -SAtk)
- Knock Off
- Leech Seed
- Power Whip
- Sleep Powder
Extremely bulky. So much so it took 50% from an Infernape Flare blitz. Highly useful for utility. Also my teams only sleeper.
---
Heatran (M) @ Choice Scarf
Ability: Flash Fire
EVs: 20 HP/236 Spd/252 SAtk
Mild nature (+SAtk, -Def)
- Fire Blast
- Earth Power
- Hidden Power [Ice]
- Explosion
Takes out dragons for the revenge kill. Works in synergy with Tangrowth. Its weaknesses are all resisted by Tangy, while Tangy's weaknesses are resisted my Heatran.
---
Gengar (M) @ Expert Belt
Ability: Levitate
EVs: 64 Atk/252 Spd/192 SAtk
Hasty nature (+Spd, -Def)
- Shadow Ball
- Thunderbolt
- Focus Punch
- Substitute
SubPunch Gengar. Rarely seen hence many don't expect it. Swept an entire team before.
---
Overall i feel my team should be well balanced. Its weaknesses should be covered well by each other. this isn't a themed team like a rain team or a trap team, but more of a team constructed by basing it off the theory o weakness and resistance and at the same time, fill up the roles in a standard quinti-essential team. However i do notice a weakness to things like Deoxys speed, celebi and other shashers. I also lack spin/SR. Can't seem to find a place to fit it in. Any help is appreciated.
Thanks
So here it is:

Gyarados (M) @ Leftovers
Ability: Intimidate
EVs: 216 HP/18 Atk/176 Def/100 Spd
Adamant nature (+Atk, -SAtk)
- Waterfall
- Stone Edge
- Taunt
- Dragon Dance
Standard Bulkydos. Great opener. Taunt for things like Hippo and Zong. I chose Stone Edge over Return to counter other Gyra. Electric weakness covered by Garchomp.
---

Blissey (F) @ Leftovers
Ability: Natural Cure
EVs: 212 HP/252 Def/46 SAtk
Bold nature (+Def, -Atk)
- Softboiled
- Ice Beam
- Thunderbolt
- Calm Mind
CM Bliss. May want to replace cuz i don't find it too useful. maybe its the set.... Weakness covered by gengar.
---

Garchomp (M) @ Yache Berry
Ability: Sand Veil
EVs: 4 Atk/252 Spd/252 SAtk
Naughty nature (+Atk, -SDef)
- Draco Meteor
- Earthquake
- Fire Blast
- Swords Dance
Chain Chomp. late game sweeper. yache for those who only have 1 dragon counter and rely highly on the ohko.
---

Tangrowth (M) @ Leftovers
Ability: Chlorophyll
EVs: 252 HP/228 Def/28 Spd
Impish nature (+Def, -SAtk)
- Knock Off
- Leech Seed
- Power Whip
- Sleep Powder
Extremely bulky. So much so it took 50% from an Infernape Flare blitz. Highly useful for utility. Also my teams only sleeper.
---

Heatran (M) @ Choice Scarf
Ability: Flash Fire
EVs: 20 HP/236 Spd/252 SAtk
Mild nature (+SAtk, -Def)
- Fire Blast
- Earth Power
- Hidden Power [Ice]
- Explosion
Takes out dragons for the revenge kill. Works in synergy with Tangrowth. Its weaknesses are all resisted by Tangy, while Tangy's weaknesses are resisted my Heatran.
---

Gengar (M) @ Expert Belt
Ability: Levitate
EVs: 64 Atk/252 Spd/192 SAtk
Hasty nature (+Spd, -Def)
- Shadow Ball
- Thunderbolt
- Focus Punch
- Substitute
SubPunch Gengar. Rarely seen hence many don't expect it. Swept an entire team before.
---
Overall i feel my team should be well balanced. Its weaknesses should be covered well by each other. this isn't a themed team like a rain team or a trap team, but more of a team constructed by basing it off the theory o weakness and resistance and at the same time, fill up the roles in a standard quinti-essential team. However i do notice a weakness to things like Deoxys speed, celebi and other shashers. I also lack spin/SR. Can't seem to find a place to fit it in. Any help is appreciated.
Thanks