Bagon

Rock Head Pokémon ^#371

Some theories suggest that its behavior of forcefully bashing its head into things stimulates cells that affect its evolution.

- Rock-Head
  This Pokémon does not receive recoil damage from its recoil moves. struggle's recoil is unaffected. This ability does not prevent crash damage from missing with jump kick or high jump kick.

- Sheer-Force
  This Pokémon's moves with extra effects have 1.3× their power, but lose their extra effects. An effect chance is a move's chance to inflict a status ailment, cause a stat change, or make the target flinch in addition to the move's main effect. For example, thunder shock's paralysis is an extra effect, but thunder wave's is not, nor are knock off's item removal and air cutter's increased critical hit rate. Moves that lower the user's stats are unaffected.

Some theories suggest that its behavior
of forcefully bashing its head into things
stimulates cells that affect its evolution.