This is my first time making a team for competitive play, so I probably no doubt have some glaring weaknesses. Maybe you guys can help me out a bit. We'll start with my thought process.
I knew that I had wanted to make a weather based team, and Sandstorm was a personal favorite, so I figured I should start with a Sand Stream user. Tyranitar is one of my favorite pokemon, but I knew my team would be offense-heavy so I opted for the more defensive pokemon, Hippowdon. I like Hippos anyways, so I am cool with it.
Excadrill was a must have on my team. I had wanted him on my story-team but couldn't fit him on. So far he seems pretty strong, and the sandstorm only makes him stronger.
Archeops was next. I never planned a use for him, since his ability is very detrimental. However, I found out about the Acrobatics-bomb with Flying Gem and have been in love with him ever since.
After Archeops came Garchomp. I looked through pokemon with Sand Veil, and he was an obvious choice. He is not uber yet, so I might as well reap his benefits. Outrage is awesome to have and does some killer damage.
Then I came to the conclusion that I have a lot of weaknesses to water and the like, so I need to change it up from rock and ground. Lucario always seemed like a cool pokemon, and i needed a special attacker anyways.
Last up is Nidoking. I was still lacking in the special attack department, and I saw him with the large variety of special moves. He was probably my favorite pokemon from Gen 1, so I naturally wanted him on my team when I found out there was a way for him to be powerful.
Details:
Hippowdon (Anonymous)
Sand Stream
Impish
Leftovers
252 HP / 252 Def / 4 SpD
*Earthquake
*Slack Off
*Stealth Rock
*Roar
Hippowdon is about my only defensive wall. I'm relying on him to set up SR and then tank it out from there. I am sure he will do fine for the job.
Excadrill (Moley Mole)
Sand Rush
Adamant
Air Balloon
4 HP / 252 Atk / 252 Spe
*Swords Dance
*Earthquake
*Rock Slide
*X-Scissor
Excadrill is my reliable powerhouse. He doesn't get outsped in a Sandstorm, and can do a variety of attacks to crush his enemies.
Archeops (PrettyBird)
Defeatist
Adamant
Flying Gem
4 HP / 252 Atk / 252 Spe
*Acrobatics
*Earthquake
*Stone Edge
*U-Turn
Archeops is useful for the Acrobatics-bomb technique that often times will one shot a lot of pokemon. Not to mention he can use U-Turn to get the heck out when need be. He is one of my favorites, even if he is a glass cannon.
Garchomp (GarChamp)
Sand Veil
Jolly
Choice Scarf
4 HP / 252 Atk / 252 Spe
*Fire Blast
*Outrage
*Earthquake
*Dragon Claw
Garchomp can oftentimes just power through situations with STAB Outrage. Confusion is risky business, but Outrage often pays out enough to outweigh the consequences.
Lucario (Anubis)
Inner Focus
Modest
Life Orb
4 HP / 252 SpA / 252 Spe
*Nasty Plot
*Aura Sphere
*Dark Pulse
*Vacuum Wave
Lucario is my primary special sweeper. He has a very high sp. attack stat, and can easily take advantage of it. He suffers from only 2 types for attacks, but they get the task done.
Nidoking (Thrasher)
Inner Focus
Modest
Life Orb
4 HP / 252 SpA / 252 Spe
*Thunderbolt
*Flamethrower
*Ice Beam
*Earth Power
Nidoking is there to break stalls with his various moves. Very few types are safe from each of his attacks.
Thanks in advance guys. Any little help is appreciated. Help me make my first team an awesome one.

I knew that I had wanted to make a weather based team, and Sandstorm was a personal favorite, so I figured I should start with a Sand Stream user. Tyranitar is one of my favorite pokemon, but I knew my team would be offense-heavy so I opted for the more defensive pokemon, Hippowdon. I like Hippos anyways, so I am cool with it.


Excadrill was a must have on my team. I had wanted him on my story-team but couldn't fit him on. So far he seems pretty strong, and the sandstorm only makes him stronger.



Archeops was next. I never planned a use for him, since his ability is very detrimental. However, I found out about the Acrobatics-bomb with Flying Gem and have been in love with him ever since.




After Archeops came Garchomp. I looked through pokemon with Sand Veil, and he was an obvious choice. He is not uber yet, so I might as well reap his benefits. Outrage is awesome to have and does some killer damage.





Then I came to the conclusion that I have a lot of weaknesses to water and the like, so I need to change it up from rock and ground. Lucario always seemed like a cool pokemon, and i needed a special attacker anyways.






Last up is Nidoking. I was still lacking in the special attack department, and I saw him with the large variety of special moves. He was probably my favorite pokemon from Gen 1, so I naturally wanted him on my team when I found out there was a way for him to be powerful.
Details:

Hippowdon (Anonymous)
Sand Stream
Impish
Leftovers
252 HP / 252 Def / 4 SpD
*Earthquake
*Slack Off
*Stealth Rock
*Roar
Hippowdon is about my only defensive wall. I'm relying on him to set up SR and then tank it out from there. I am sure he will do fine for the job.

Excadrill (Moley Mole)
Sand Rush
Adamant
Air Balloon
4 HP / 252 Atk / 252 Spe
*Swords Dance
*Earthquake
*Rock Slide
*X-Scissor
Excadrill is my reliable powerhouse. He doesn't get outsped in a Sandstorm, and can do a variety of attacks to crush his enemies.

Archeops (PrettyBird)
Defeatist
Adamant
Flying Gem
4 HP / 252 Atk / 252 Spe
*Acrobatics
*Earthquake
*Stone Edge
*U-Turn
Archeops is useful for the Acrobatics-bomb technique that often times will one shot a lot of pokemon. Not to mention he can use U-Turn to get the heck out when need be. He is one of my favorites, even if he is a glass cannon.

Garchomp (GarChamp)
Sand Veil
Jolly
Choice Scarf
4 HP / 252 Atk / 252 Spe
*Fire Blast
*Outrage
*Earthquake
*Dragon Claw
Garchomp can oftentimes just power through situations with STAB Outrage. Confusion is risky business, but Outrage often pays out enough to outweigh the consequences.

Lucario (Anubis)
Inner Focus
Modest
Life Orb
4 HP / 252 SpA / 252 Spe
*Nasty Plot
*Aura Sphere
*Dark Pulse
*Vacuum Wave
Lucario is my primary special sweeper. He has a very high sp. attack stat, and can easily take advantage of it. He suffers from only 2 types for attacks, but they get the task done.

Nidoking (Thrasher)
Inner Focus
Modest
Life Orb
4 HP / 252 SpA / 252 Spe
*Thunderbolt
*Flamethrower
*Ice Beam
*Earth Power
Nidoking is there to break stalls with his various moves. Very few types are safe from each of his attacks.
Thanks in advance guys. Any little help is appreciated. Help me make my first team an awesome one.