Hello fellow members of Serebiiforums.

Welcome to my new RMT, using a very overused poke, who I still hate, but he serves his role so well. I'm talking about No Bull, the Terrakion here. The team is pretty offensive, but due to bulky pokes, won't get swept with ease~
I present you:

No Bull (Terrakion) @ Choice Scarf
Jolly nature
252 Atk/4 SpD/252 Spe
-Stealth Rock
-Stone Edge
-Close Combat

Terrakion, even though he's ugly as he is, is such an awesome revenge killer and lead. Due to SR on the first turn, people think it isn't choiced, and then it kills Tornadus, Genesect or even Modest Venusaur (at 60%) in sun with great ease, due to the unexpected scarf. Anyway, SE is the strongest STAB to kill aforementioned victims, and Close Combat gives great neutral coverage. X-Scissor is filler, to hit Espeon and Slowbro harder than the other moves could.

Volcarona @ Leftovers
Timid nature
Flame Body
252 SpA/4 SpD/252 Spe
-Quiver Dance
-Giga Drain
-Fiery Dance
-Bug Buzz

Volcarona is a very powerful special sweeper, that even handles rain teams, if it gets to +3, which it more often than not can reach. Quiver Dance is thus the obvious boosting move, with Giga Drain for extra recovery. Fiery Dance if a not that weak STAB move, with the pleasant side effect of bosting my special attack even further. Bug Buzz is secondary STAB. Even though it is walled by pretty much any fire type, it doesn't carry HP [Ground] because I hate Hidden Power breeding. Fire types are taken care of by one or both of the following:

Gasoline (Gastrodon) @ Leftovers
Sassy nature
Storm Drain
252 Hp/4 Atk/252 SpD

Gastrodon, the special wall, easily tanking Latios's Meteors, while Toxistalling it to a slow, painful death. Scald is to burn stuff like Genesect, so they're also walled. Earthquake is secondary STAB, dealing some damage to CM users, such as the common Keldeo on rain teams (so original). Recover is to live another day, while Toxic is the main way of dealing damage.

Starmie @ Leftovers
Timid nature
Natural Cure
4 Def/252 SpA/252 Spe
-Hydro Pump
-Psychic/Psyshock/Ice Beam
-Rapid Spin

Starmie is the best spinner around, spinning before it gets hit, KO'ing the majority of the hazard layers, and curing itself of the poison induced by Toxic Spikes. Hydro Pump is STAB, Thunderbolt is for Flying types. Psychic is secondary STAB, to deal good damage to most Fighting types. Psyshock is another option to hit them, and it hits Tentacruel harder, but I'm sticking to Psychic ATM. Rapid Spin is the obvious move to spin away hazrds.

BlackMasks (Hydreigon) @ Choice Specs
Timid nature
4 Def/252 SpA/252 Spe
-Draco Meteor
-Dark Pulse
-Fire Blast

(Black Masks and Gasoline) Hydreigon is another offensive powerhouse, that is bound to KO at least two opponents per match, due to its overpowered Draco Meteors. Dark Pulse if I don't need to use DMeteor, or if I can't afford a miss (yes, luck hates me, DMeteor has missed too often when needed). Surf gets a rain boost, and kills Heatran and TTar (at least 2HKO's) and Fire Blast to get rid of spiky plant things and Scizor. Timid to outspeed neutral base 100's and other Modest Hydreigon.

Hells Bell (Bronzong) @ Macho Brace
Brave nature
252 Hp/252 Atk/4 SpD
-Trick Room
-Gyro Ball
-Rock Slide

Bronzong is a great late-game cleaner. Trick Room + Macho Brace + Brave nature + 0 Spe IV's make it the fastest pokemon around, while also maximizing Gyro Ball's power against most opponents. Earthquake is a great move to have and OHKO's Heatran, 2HKO's offensive Jirachi. Rock Slide is for Volcarona and Flying types, with a nice Flinch chance. Heatrproof is used, since only like 3% of the people is stupid (or smart) enough to EQ a Bronzong, giving it practically no weaknesses.

That's the team, I hope you like it, and help me improve it. I'm open to critisism, so don't hold back, but if you mention this is wrong and that is wrong, also tell what I could do to fix that. Thanks in advance.