Very good team. Have you considered using a Fighting-type to deal with Heatran? Virizion helps to deal with rain, although another option is Terrakion. I'd suggest SD Virizion, who allows you to threaten out Blissey and Jellicent with smart double switches, building up hazard damage that eventually makes them unable to wall your special sweepers, while also providing a check for Drizzle and Tyranitar.
Virizion @ Leftovers
Justified
Jolly 4/252/0/0/0/252
- Leaf Blade
- Close Combat
- Stone Edge
- Swords Dance
I'd suggest this over Sawsbuck. Good team and good luck!
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