I'm pretty new here, but I've been playtesting this team on Shoddy for a few weeks. I know it needs work, but I can't quite put my finger on it. Thus, here I am.
The Team At A Glance
Aerodactyl @ Focus Sash
Ability: Pressure
EVs: 252 ATK / 252 SPD / 6 HP
Nature: Jolly
Comments: This is a fairly normal SR/Taunt lead. I really don't see a problem with him for now, and really don't want to change him. But, I am open to suggestions.
Breloom @ Toxic Orb
Ability: Poison Heal
EVs: 252 ATK / 208 SPD / 50 HP
Nature: Adamant
Moveset:
Spore
Focus Punch
Seed Bomb
Substitute
Comments: Breloom is the core of this team, and for good reason. As long as he can get off the first Spore, he can usually take out 2-3 Pokemon without an issue. 1st turn Spore, 2nd Sub, then Focus Punch and Seed Bomb through the sweep. Resistances usually don't matter, mainly because of the Sub shielding him. Toxic Orb works on two levels: It recovers the Sub life loss, and prevents Breloom from being affected by another status. This particular Breloom usually wins a mirror match, and only fears Infernape and other quick Fire-types. This doesn't matter much, mostly because you wouldn't switch into a Fire-type, and Spore hits anything that would switch to counter Breloom.
One note: Breloom has a huge problem dealing with Flinchhax Pokemon. I don't know why, but I HATE Jirachi.
Blissey @ Leftovers
Ability: Natural Cure
EVs: 252 DEF / 176 SPD / 82 SpATK
Nature: Calm
Moveset:
Flamethrower
Wish
Protect
Toxic
Comments: Stereotypical Blissey wall here. Chose Flamethrower to counter the common Scizor switch-ins. Heatran really hurts this build, but that seems to be its only real problem. Toxic doesn't really mesh with Breloom and Spore, but I rarely run into that probelm, due in part to Blissey being able to outlast anything it actually poisons. Wish is great for patching up my lead, or anyone else who needs the HP boost. I usually hate Blissey, but damn it if she doesn't work.
Empoleon @ Expert Belt
Ability: Torrent
EVs: 14 DEF / 232 SPD / 252 SpATK
Nature: Modest
Moveset:
Surf
Ice Beam
Grass Knot
Agility
Comments: Ah, Empoleon. I both love and hate you. You're great for revenge-killing, but terrible at killing anything even resembling a Special Wall. I really only added Empoleon because he is good at taking out slow Earthquake users, or really anything slow. But fast Earthquakers, like Gliscor, can KO Empoleon before he can return the favor. Agility is here for that very reason. This and the Metagross need the most work, and may need to go.
Metagross @ Choice Band
Ability: Clear Body
EVs: 252 ATK / 252 DEF / 6 HP
Nature: Adamant
Moveset:
Earthquake
Explosion
Bullet Punch
Meteor Mash
Comment: Here is my other weak link. Metagross works well enough, but doesn't seem to mesh with my team. I love him as a physical wall that can dish out some pain, and Bullet Punch really helps make up for the lack of speed. But, as with Empoleon, anything quick with Earthquake really hurts him. Plus, he adds another weakness to Heatran.
Rotom @ Choice Scarf
Ability: Levitate
EVs: 252 HP / 168 DEF / 90 SPD
Nature: Bold
Moveset:
Shadow Ball
Overheat
Thunderbolt
Hidden Power Fighting
Comments: This Rotom helps shore up Empoleon and Metagross's weaknesses. He can switch in to an Earthquake, bash the opponent with STAB Shadow Ball, beat up Heatran with HP Fighting, or hurt Jirachi and other Steel-types with Overheat. He is also a spin blocker, and a decent one at that. I opted out of using Trick because I tend to go for Leftovers in non-Item Clause'd battles.
OVERALL: The team works great against slower teams, especially walls. The biggest threats to the team are Heatran, other Blissey, and Flinchaxors. But, it works a large majority of the time. I refuse to let Breloom go, so leave him be. I just need help on figuring out what it needs. I just can quite put my finger on it. Anyway, thanks in advance for helping me with my first RMT!
The Team At A Glance







Aerodactyl @ Focus Sash
Ability: Pressure
EVs: 252 ATK / 252 SPD / 6 HP
Nature: Jolly
Moveset:
Earthquake
Stealth Rock
Taunt
Rock Slide
Earthquake
Stealth Rock
Taunt
Rock Slide
Comments: This is a fairly normal SR/Taunt lead. I really don't see a problem with him for now, and really don't want to change him. But, I am open to suggestions.

Breloom @ Toxic Orb
Ability: Poison Heal
EVs: 252 ATK / 208 SPD / 50 HP
Nature: Adamant
Moveset:
Spore
Focus Punch
Seed Bomb
Substitute
Comments: Breloom is the core of this team, and for good reason. As long as he can get off the first Spore, he can usually take out 2-3 Pokemon without an issue. 1st turn Spore, 2nd Sub, then Focus Punch and Seed Bomb through the sweep. Resistances usually don't matter, mainly because of the Sub shielding him. Toxic Orb works on two levels: It recovers the Sub life loss, and prevents Breloom from being affected by another status. This particular Breloom usually wins a mirror match, and only fears Infernape and other quick Fire-types. This doesn't matter much, mostly because you wouldn't switch into a Fire-type, and Spore hits anything that would switch to counter Breloom.
One note: Breloom has a huge problem dealing with Flinchhax Pokemon. I don't know why, but I HATE Jirachi.

Blissey @ Leftovers
Ability: Natural Cure
EVs: 252 DEF / 176 SPD / 82 SpATK
Nature: Calm
Moveset:
Flamethrower
Wish
Protect
Toxic
Comments: Stereotypical Blissey wall here. Chose Flamethrower to counter the common Scizor switch-ins. Heatran really hurts this build, but that seems to be its only real problem. Toxic doesn't really mesh with Breloom and Spore, but I rarely run into that probelm, due in part to Blissey being able to outlast anything it actually poisons. Wish is great for patching up my lead, or anyone else who needs the HP boost. I usually hate Blissey, but damn it if she doesn't work.

Empoleon @ Expert Belt
Ability: Torrent
EVs: 14 DEF / 232 SPD / 252 SpATK
Nature: Modest
Moveset:
Surf
Ice Beam
Grass Knot
Agility
Comments: Ah, Empoleon. I both love and hate you. You're great for revenge-killing, but terrible at killing anything even resembling a Special Wall. I really only added Empoleon because he is good at taking out slow Earthquake users, or really anything slow. But fast Earthquakers, like Gliscor, can KO Empoleon before he can return the favor. Agility is here for that very reason. This and the Metagross need the most work, and may need to go.

Metagross @ Choice Band
Ability: Clear Body
EVs: 252 ATK / 252 DEF / 6 HP
Nature: Adamant
Moveset:
Earthquake
Explosion
Bullet Punch
Meteor Mash
Comment: Here is my other weak link. Metagross works well enough, but doesn't seem to mesh with my team. I love him as a physical wall that can dish out some pain, and Bullet Punch really helps make up for the lack of speed. But, as with Empoleon, anything quick with Earthquake really hurts him. Plus, he adds another weakness to Heatran.

Rotom @ Choice Scarf
Ability: Levitate
EVs: 252 HP / 168 DEF / 90 SPD
Nature: Bold
Moveset:
Shadow Ball
Overheat
Thunderbolt
Hidden Power Fighting
Comments: This Rotom helps shore up Empoleon and Metagross's weaknesses. He can switch in to an Earthquake, bash the opponent with STAB Shadow Ball, beat up Heatran with HP Fighting, or hurt Jirachi and other Steel-types with Overheat. He is also a spin blocker, and a decent one at that. I opted out of using Trick because I tend to go for Leftovers in non-Item Clause'd battles.
OVERALL: The team works great against slower teams, especially walls. The biggest threats to the team are Heatran, other Blissey, and Flinchaxors. But, it works a large majority of the time. I refuse to let Breloom go, so leave him be. I just need help on figuring out what it needs. I just can quite put my finger on it. Anyway, thanks in advance for helping me with my first RMT!