Oblivious
The Pokémon is oblivious, keeping it from being infatuated, falling for taunts, or being affected by Intimidate.
Simple
The stat changes the Pokémon receives are doubled.
Magma of almost 2,200 degrees Fahrenheit courses through its body. When it grows cold, the magma hardens and slows it.
The flaming magma it stores in the hump on its back is the source of its tremendous power.