Gabite has a lot of Ground moves which are highly effective against Electric, Fire, Poison, Rock, and Steel Pokemon. Gabite’s Dragon moves are effective against most other types, making them powerful moves to use when leveling. Avoid fighting Steel and Fairy Pokemon, as Dragon attacks are weak or completely useless against them.
You can’t trade a Gabite to someone and then have them trade it back. The Gabite must have been caught on a different system.
To cancel an evolution, press and hold B while the Gabite is evolving. This will cancel the evolution and prevent it from turning into Garchomp. Once the Gabite reaches Level 49, it will learn Dragon Rush and then try to evolve again. You can now let it safely evolve, as there are no more moves that Gabite will learn, and Dragon Rush is a very powerful move to have for your new Garchomp that it normally wouldn’t learn for another seven levels.