It really doesn't matter, every Pokeball works, but specific Pokeballs work better than the rest such as a Master ball.
you catch it with a poke ball
master ball
At blue lake (2000 watts to unlock) at L10F (group A). Hope I helped!
use a poke ball
with a poke ball
by throwing it
the ultra ball is what i used to catch it...but you could use the master ball after you get it
To catch a pokemon, you require a Poke ball, which you can buy from a poke mart.
use a master ball
A master ball
In Pokémon AshGray, you can catch Dratini by fishing in the Safari Zone. Use a Super Rod to increase your chances of encountering Dratini in the water areas. Look for patches of water where Dratini is known to appear, and be prepared for a battle to weaken it before throwing a Poké Ball to catch it. Good luck!
With a Poke Ball.