Rock Wrecker is a very powerful Rock-type move introduced in Generation IV, which-at the time-was a level-up exclusive to the Drill Pokémon Rhyperior. The user launches a humongous boulder to attack. The move uses up as much energy as Hyper Beam or Giga Impact, so the user is unable to attack on the next turn as a result.
Pokémon that Learn this Move via Level-Up
Pokémon that Learn this Move via Breeding