Dratini evolves into Dragonair at Level 35 and then evolves in to Dragonite at Level 55.
it doesnt evlove by level. you need to trade it and it will evlove for them, then they trade it back.
Level 36.
Level 25.
Level 28.
Level 18
Level 20.
55
level 33
level 40
Magikarp evolve at level 20.
Dratini evolve into Dragonair starting at level 30, and Dragonair evolve into Dragonite starting at level 55.If you would like to learn more about Dratini, please copy and paste the following link:Dratini:http://bulbapedia.bulbagarden.net/wiki/Dratini
You can not evolve a dratini with a stone but a dratini evolves in level 100