Flygon
- Solid Attack and Speed
- Ground and Dragon hits a lot for at least neutral
- Levitate is pretty good
- Gets moves like Dragon Claw, Fire Punch, U-turn, Fly, and Strength
- Average 80 in its other stats
- Takes longer to evolve than Sandile/Krokorok
Krookodile
- Great Abilities in Intimidate and Moxie
- Dark hits a lot of things super effectively in Unova
- Respectable Speed and HP, excellent Attack
- Learns moves like Crunch, Earthquake, and Strength
- Weak to common types
- Slower than Flygon
Use Krookodile. It's harder-hitting, and it has a better type combination for offense.
Krookodile @ Soft Sand / Blackglasses
Ability: Intimidate / Moxie
- Earthquake
- Crunch
- Strength / Dig*
- Return
*Dig should only be used to escape caves.
Hope I helped!