My casual play team i've used for quite a bit. =w=
It ain't much but heck, its better then my crappy gym team. =w=
Suggestions are needed for weak spots.
Breloom w/focus sash
Nature: Jolly
Ability: Poison heal
Spore
focus punch
seed bomb
stone edge
Hard to counter espcially with focus sash. Need to watch out for pokemon with subsitute in there sets and pokemon that start whether effects. (T-tar and abamasnow. :V)
Honestly, breloom as a lead does no good for you at all since most leads out there will threaten it even with its focus sash. Yes, he can use spore in the beginning but if you really want a spore lead that can get more done for you go with smeargle. Try this lead set:
Smeargle @ Focus Sash
252 HP/4 Def/252 Spe
Jolly nature (+Spe, -SpAtk)
Spore
Stealth Rock
Thunder Wave/Taunt
Destiny Bond/Spikes
This is a weird set, non-standard but I think it'll work nicely for you. Spore the first lead, rocks as they switch out. Sash ensures you'll spore and get rocks up. If you keep your sash and make them switch out, you can thunder wave their switch in as you lose the sash and destiny bond since you'll be guaranteed to be faster. Yeah, it'll spoil the surprise, and you'll still lose to aerodactyl no matter what, but it's a nice idea and I think you should try it out even with the chance of paralysis ruining destiny bond. I listed the standard moves second, as they'll always be a solid choice.
Infernape w/life orb
Nature: Naive
EVs: 64 atk, 252 sp attack, 192 speed
Close combat/U-turn?
grass knot
flamethrowerFire Blast
hidden power - ice
Definitely run fire blast over flamethrower, he needs the extra power. This is a pretty standard mixape, but I think a lot of what makes it work is that he has the power to clear out most walls that stand in his way, so your team should take advantage of having those walls gone. However, since latias is so common, I'm going to suggest u-turn over close combat, since scouting the opponent's latias switch-in is critical. I'd also suggest if you follow this change that you move the attack EVs into speed just because you don't need a lot of power on u-turn, and the extra speed can be helpful. A free switch for breloom into blissey's status of choice is nice too though
Spiritomb w/leftovers
Nature: Relaxed
EVs 252 defense, 252 hp, 4 sp def
protect
confuse ray
nasty plot
dark pulse
Staaaaalller. Biggest threat is clefable and taunt. =w=
Having two defensive setup pokemon is not really a good idea on a team, so I think you should ditch either suicune or spiritomb. Using breloom here would probably give you better results 
Breloom @ Toxic Orb
252 Atk/4 Def/252 Spe
Jolly nature (+Spe, -SpAtk)
Spore
Substitute
Focus Punch
Seed Bomb/Stone Edge
This guy is a real pain to take down, especially with poison heal as his ability. I'd say this team has a nice enough time dealing with flying threats as a whole so I'd give the nod to seed bomb over stone edge, although both are useful.
Suicune w/lum berry
EVs 252 def 252 hp, 4 speed.
nature: bold
Surf
ice beam
rest
extrasensory (Needs changing.)
Suicune with a resto-chesto theme. =w= Only with out the chesto berry. :V
I think you should try an offensive suicune here with its type coverage. It can be a secondary sweeper of sorts, being able to still beat things that will stop scizor from sweeping like gyarados/starmie.
Suicune @ Leftovers
252 SpAtk/252 Spe/4 Def
Timid nature (+Spe, -Atk)
Calm Mind
Ice Beam
Surf
Hidden Power Electric
Scizor w/ white herb
Nature: Adamant
Evs: 252 attack, 252 hp, 4 speed
Bullet punch
quick attack
super power
swords dance
SD Scizor is fine, but white herb isn't really worth it as an item goes just because having the extra power of life orb means you'll do more damage over 2 hits even with the drop in attack. Also quick attack is your choice but scizor should really run bug bite just so he has a nice neutral STAB to deal with bulky waters like vaporeon and suicune, and he needs a bit more speed to get the jump on them as well. Try the spread 72 HP/252 Atk/168 Spe/40 def just so he can outspeed 4 spe suicune and minimize life orb recoil.
Ampharos w/ choice specs
Nature: modest
EVs: 252 hp, 252 sp attack
Thunderbolt
focus blast
hidden power - ice
power gem.
Ampharos is nice and bulky but he really doesn't have great coverage. If you want a powerful specs user I'd go with specs latias, especially since he can scare a lot of switch-ins and helps to weaken walls that will ruin your sd scizor sweep. The big advantage specs latias has is that his surf can 2hko offensive tyranitar and scizor with stealth rocks up and can trick its choice specs onto blissey.
Latias @ Choice Specs
252 SpAtk/252 Spe/4 Def
Timid Nature (+Spe, -Atk)
Draco Meteor
Surf
Thunderbolt
Trick