What moves can nidoking learn?

It can learn Peck, lv. 1, Focus Energy, lv. 1, Poison Sting, lv. 1, Double Kick, lv. 1, Thrash, lv. 22, Megahorn, lv. 43 To teach Nidoking Horn Attack, Focus Energy, Flatter and Horn Drill, evolve Nidorino after it learns these moves. (Nidorino learns its last attack, Horn Drill, at Lv. 54. To teach Megahorn or Thrash after evolution, visit a move relearner.