nincada evolves at level 20
In Pokémon Sapphire, Nincada will evolve at Level 20.
20
Nincada evolves into Ninjask at level 20. If you have an empty slot in your party and an extra pokeball (a normal pokeball) Nincada will also evolve into Shedinja (It evolves into two Pokemon at once)
17 or16
You have to evolve Nincada. You can't catch it.
Nincada evolves into Ninjask at level 20. Also, a Shedinja will appear in your party if there is an empty slot when the Nincada evolves.
First catch nincada Then leave an open place in your Pokemon (only have five with you) have an empty pokeball train nincada and evolve him That should do it
A Carvanha evolves into Sharpedo at Level 30.
Magikarp evolves into Gyarados starting at level 20.
get your nincada to at least level 20 you also have to have a free space in your team
nincada evolves at level 20 (i think) if you have an empty pokeball when you evolve nincada you will get a shedninja. nincada evolves into ninjask
Ninjask is the highest evolved form, thus meaning he cannot evolve any higher. But it is possible to get two different Pokemon from evolving his pre-evolve form Nincada. Simply Evolve Nincada into Ninjask with an open slot inside your party and you will get Shedinja.