Obtainable Pokemon with Flame Body in W2:
- Heatran (Reversal Monutain, Hidden Ability)*
- Litwick and evolutions (Litwick at Celestial Tower/Strange House)
- Larvesta and Volcarona (Volcarona at Relic Castle via Relic Tunnel)
Also note that Pokemon with Magma Armor also speed up the egg hatching process.
Heatran does not appear with its Hidden Ability at this location.
With Magma Armor:
- Numel and Camerupt (both at Reversal Monutain)