(Explanation of the team from the creator of the team.)
straight-up offense.
Azelf - sets rocks and taunts the opposition from setting their rocks
Ninetales - has sunny day as the last slot to break down opposing weather from Tyranitar and Pelipper
Heatran - is choice specs, its last slot consists of dragon pulse to hit Lati twins, Garchomp, Dragonite hard which otherwise serves as great checks to it.
Venusaur - is growth + 3 attacks. last slot is earthquake to hit opposing Heatran for super effective damage and it also hits other steel-types such as Magnezone heavily.
Dragonite - is the setup sweeper and late game cleaner in this team with lum berry + dragon dance.
Mamoswine - is choice banded and has a great priority in ice shard to pick off dragon-types and flying-types with ease and to act as a form of pseudo-speed control. furthermore, ice + ground stab is very hard to switch into.
These are the Pokémon you will receive!
Azelf @ Colbur Berry
Ability: Levitate
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
- Stealth Rock
- U-turn
- Thunder Wave
- Taunt
Ninetales @ Heat Rock
Ability: Drought
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Nasty Plot
- Fire Blast
- Solar Beam
- Sunny Day
Heatran @ Choice Specs
Ability: Flash Fire
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Overheat
- Flamethrower
- Flash Cannon
- Dragon Pulse
Venusaur @ Life Orb
Ability: Chlorophyll
EVs: 4 Atk / 252 SpA / 252 Spe
Mild Nature
- Growth
- Sludge Bomb
- Giga Drain
- Earthquake
Dragonite @ Lum Berry
Ability: Inner Focus
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Outrage
- Dragon Dance
- Extreme Speed
- Earthquake
Mamoswine @ Choice Band
Ability: Thick Fat
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Icicle Crash
- Ice Shard
- Earthquake
- Stone Edge
I did not create this team but found it on Smogon, I would highly recommend checking out smogon for team ideas.