Gabite evolves into Garchomp at Level 48. Obtaining a shiny form is possible when Gabite levels up, but there is no alternate evolutionary form available.
Garchomp continues as a Dragon and Ground type. Gabite learns the Dual-Chop move at Level 24; Slash learns it at Level 28. Dragon Claw learns the move at Level 33, and Dig, at Level 40. Garchomp's only other possible move to learn by leveling is Dragon Rush at Level 49. However, Rough Skin is also available as a hidden ability. Gabite or Garchomp can also learn a range of moves from move tutors and technical machines, or TMs.