GHOST/FIRE wakness help!9AKA HEAT ROTOM)

Bronzong @ Leftovers
Ability: Levitate
EVs: 252 HP/86 Atk/80 Def/92 SDef
Sassy nature (+SDef, -Spd)
- Stealth Rock
- Gyro Ball
- Earthquake
- Explosion
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Celebi @ Leftovers
Ability: Natural Cure
EVs: 252 HP/220 Def/38 Spd
Bold nature (+Def, -Atk)
- Leech Seed
- Grass Knot
- Recover
- Hidden Power [Fire]
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Latias (F) @ Leftovers
Ability: Levitate
EVs: 6 HP/252 Spd/252 SAtk
Timid nature (+Spd, -Atk)
- Calm Mind
- Dragon Pulse
- Surf
- Recover
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Snorlax (M) @ Leftovers
Ability: Thick Fat
EVs: 168 HP/122 Def/220 SDef
Careful nature (+SDef, -SAtk)
- Curse
- Body Slam
- Rest
- Fire Punch
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Heracross (M) @ Choice Scarf
Ability: Guts
EVs: 252 Atk/6 Def/252 Spd
Jolly nature (+Spd, -SAtk)
- Megahorn
- Night Slash
- Close Combat
- Stone Edge
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Starmie @ Life Orb
Ability: Natural Cure
EVs: 6 HP/252 Spd/252 SAtk
Timid nature (+Spd, -Atk)
- Surf
- Thunderbolt
- Ice Beam
- Psychic
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