The complete Pokemon Diamond and Pearl pokedex, part 10

Pokémon Name: Heatran
Type: Fire / Steel
Classification: Crater
Pokédex Number: 485 National
Ability: Flash Fire – Makes immune to Fire-type attacks and boosts the potency
Dream World ability: Flame Body – 30% of burning opponent when user is hit with a move that makes contact; eggs hatch twice as fast if user is in your party
Useful Attacks: Magma Storm
Location Found:
D/P/P: Stark Mountain
HG/SS: Trade with D/P/P
B/W: Poke Transfer

Northeast of Sinnoh is an island open only to the most elite Pokémon trainers, one you'll be visiting once you've established yourself as the region's foremost Pokémon Champion. At the northernmost end of this elite island is Stark Mountain, a treacherous volcano housing the region's strongest wild Pokémon. After a volcanic eruption, this smoldering Pokémon reveals itself, and will put up quite a fight before it'll lay in a Pokeball. This Pokémon's ridiculous overbite masks a formidable opponent, with an outlandish type combination and impressive stats.