Aristrea01 asked me to post my Swampert team here, so here we go! 


https://pokepast.es/b3126cce98cdad16
I'm currently messing around with bulky CS Lead Jirachi, and this team aims to make use of it's hit-taking capabilities and chance to trick a scarf onto a key Jirachi answer (Skarmory, Metagross, Bronzong, Heatran, Swampert, Hippowdon), which enables your teammates.
Physically Offensive Protect Swampert appreciates weakened Skarmorys and Bronzongs in particular, because they can't sit on it anymore.
Jirachi
It also has the tendency to be dead-weight after tricking the scarf away, so don't be afraid to sacrifice it. This will allow Tyranitar or Breloom to get into a good position.
Breloom
Swampert
Latias
Heatran
Tyranitar
The extra speed comes in handy against many variants of Breloom, Scizor and some Rotoms.
Threat list:



https://pokepast.es/b3126cce98cdad16
I'm currently messing around with bulky CS Lead Jirachi, and this team aims to make use of it's hit-taking capabilities and chance to trick a scarf onto a key Jirachi answer (Skarmory, Metagross, Bronzong, Heatran, Swampert, Hippowdon), which enables your teammates.
Physically Offensive Protect Swampert appreciates weakened Skarmorys and Bronzongs in particular, because they can't sit on it anymore.
Jirachi
- 112 Spe EVs to pressure Max Speed Breloom after tricking the scarf away, rest in HP and SpD
- SR because it can come in easily against Draco Meteors
- U-turn for unfavorable matchups in the lead slot / to escape Magnezone / to put pressure on Latias and Celebi after SR is on the field
It also has the tendency to be dead-weight after tricking the scarf away, so don't be afraid to sacrifice it. This will allow Tyranitar or Breloom to get into a good position.
Breloom
- Default SubPunch EV spread
- Mach Punch after Spore was banned. The team does poorly into HO due to the lack of a good CS user, so having the means to revenge-kill DD Tyranitar, Agility Empoleon, SD Lucario etc. is good.
- Substitute to profit from forced switches.
Swampert
- The star of this competition
(guys we need a celebration emoji) - Default Physically Offensive Spread.
- Lead Jirachi frees up the SR slot, so you can run Protect here
Latias
- Default Timid Specs Latias
- Dragon Pulse over the now unnecessary Sleep Talk. Breloom, Swampert and Tyranitar have a good chance to weaken the opponent's steel types to the point where you can sweep.
Heatran
- Utility Heatran with WoW over SR.
- Didn't know if Timid or Modest would be better here. Went with Modest because I don't use it often on my Heatrans. Didn't run into any problems after 20+ matches.
- Leftovers to check Jirachi and stick around longer. Resist berries didn't feel necessary here, since the usual threats (Starmie, Swampert, other Heatran) are covered.
Tyranitar
- Mostly All-purpose spread with small adjustments. 204 Spe EVs to outspeed uninvested Rotom-A, 52 SpA EVs to OHKO most Offensive Brelooms with Fire Blast (especially those SD ones that have recently popped up like mushrooms), 48 HP EVs and 64 SpD EVs survives two Draco Meteors from Timid Specs Latias WITHOUT SR, rest goes in attack
- SR on Lead Jirachi lets me use Superpower here for a good hit on other Ttars, Heatran and Clefable.
- Chople Berry instead of the usual Passho Berry because Gengar is a huge problem for this team.
The extra speed comes in handy against many variants of Breloom, Scizor and some Rotoms.
Threat list:
- Offensive Spikes teams. Skarmory will usually lead. Don't let Skarmory spike all over the place. Trick it a scarf and hope that it goes for SR and not for Spikes first.
- SD Lucario 5-0s this team with CS tricked away and Breloom dead. If you see a Offensive Spikes team, keep Breloom safe so it can revenge-kill Lucario after a CC. Otherwise it's gg.
- Mixed Flygon. Your best bet is to burn it with WoW on the switch or keep Latias alive.
- Offensive Starmie can be annoying because everyone on the team is outsped by it.
- Zapdos, especially variants with HP Grass, can be difficult to answer. Make sure rocks are up.
- Gyarados can be tough to take down due to the lack of Electric and Rock attacks on this team and may come in on Jirachi, Breloom, Swampert or Tyranitar. Try burning it or go boom, depending on if you still need Heatran or not. Don't switch-out with the others, but let it DD while you bite chunks out of it until it needs to attack. Breloom and Swampert all survive a hit at +1. Pray that the flinch gods have a day off.

- Dragonite. Best to have rocks up.
- Lead Empoleon. Trick it, or you'll lose half your team.
- Suicune. Depends on the set, but may become unstoppable.
- Mixed Infernape. Latias is the only answer on this team, so don't throw it in u-turns. Heatran and Tyranitar can take a non-LO CC in a pinch.
- CM Jirachi (?) could be dangerous, but haven't run into one yet.