Heatran @ Balloon/Leftovers
Ability: Flash Fire
EVs: 248 HP / 40 SpA / 220 SpD
Calm Nature
IVs: 30 Atk / 30 Def
- Lava Plume
- Protect
- Stealth Rock
- Toxic
Scizor @ Scizorite
Ability: Technician
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Defog
- Roost
- U-turn
- Bullet Punch
Gliscor @ Toxic Orb
Ability: Poison Heal
EVs: 244 HP / 192 Def / 72 Spe
Impish Nature
- Earthquake
- Roost/Substitute
- Toxic
- Protect
Latias (F) @ Life Orb
Ability: Levitate
EVs: 72 HP / 184 SpA / 252 Spe
Timid Nature
- Draco Meteor
- Psyshock
- Defog
- Roost
Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 252 HP / 212 SpD / 44 Spe
Calm Nature
- Volt Switch
- Hydro Pump
- Will-O-Wisp
- Pain Split
Breloom @ Toxic Orb
Ability: Poison Heal
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Leech Seed
- Drain Punch
- Protect
- Spore
Ability: Flash Fire
EVs: 248 HP / 40 SpA / 220 SpD
Calm Nature
IVs: 30 Atk / 30 Def
- Lava Plume
- Protect
- Stealth Rock
- Toxic
- My lead for setting up stealth rock and hopefully get a toxic down on an enemy as steel types will most likely be cautious about switching into Heatran.
- Balloon to avoid the earthquake 1HKO, leftovers for his only form of recovery.
- Lava plume to fish for burns and function as his primary STAB, protect to gain a free turn of toxic damage and leftovers recovery, stealth rock and toxic is self-explanatory.
- Specially defensive spread with a calm nature with enough in SpA to make his lava plume somewhat hurt.
Scizor @ Scizorite
Ability: Technician
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Defog
- Roost
- U-turn
- Bullet Punch
- Tanky scout with U-turn and and packs a bit of PUNCH with Bullet Punch. Also provides defog support so there's less pressure on Latias.
- I debated between this form and choice scarf/band scizor and decided that a stall team should have a tanky physical wall of a Scizor.
- Defensive spread combined with mega will ensure that he can effectively wall a lot of threats. His 4x weakness to fire is padded by Heatran and Latias.
Gliscor @ Toxic Orb
Ability: Poison Heal
EVs: 244 HP / 192 Def / 72 Spe
Impish Nature
- Earthquake
- Roost/Substitute
- Toxic
- Protect
- Second physical wall, typical SubToxic Gliscor here to gradually chip away at enemies' health. Some points in speed to allow him to hopefully outspeed some threats.
- Roost provides more immediate healing while substitute keeps him safe over a longer period of time. Both let him be an incredibly annoying stalling pokemon as if opponents don't have an ice-type move they'll slowly get rekt.
- Earthquake for his STAB move and protect to let his toxic orb proc without getting it knocked off.
Latias (F) @ Life Orb
Ability: Levitate
EVs: 72 HP / 184 SpA / 252 Spe
Timid Nature
- Draco Meteor
- Psyshock
- Defog
- Roost
- Primary defog support while also being the most offensive attacker in this group because Latias already has respectable bulk.
- EVs in speed are obvious, SpA to juice up the STAB moves and life orb to make Latias pack more of a punch.
- Roost provides a good chunk of recovery to synergize with the good spread of resistances that Latias has.
Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 252 HP / 212 SpD / 44 Spe
Calm Nature
- Volt Switch
- Hydro Pump
- Will-O-Wisp
- Pain Split
- Second half of the VoltTurn combo with Scizor.
- Second specially defensive pokemon with Hydro Pump for STAB. Pain split is the only recovery Rotom-W has outside of leftovers so I slapped that on because stall team.
- Provides good chip damage on the enemy because of burns and the natural VoltTurn damage provided.
Breloom @ Toxic Orb
Ability: Poison Heal
EVs: 252 HP / 4 Atk / 252 SpD
Careful Nature
- Leech Seed
- Drain Punch
- Protect
- Spore
- Second half of the uber-annoying stall combo along with Gliscor. Alternating between protect and drain punch instead of earthquake and protect/substitute to chip down the enemy.
- Leech seed to complete the stupid amount of recovery Breloom has and to force a switch.
- Specially defensive spread but defensive spread could work too.