You don't. You must evolve nincada in ninjask, but when you evolve it, have an empty slot in your party. After nincada evolves, check your party, 100% chance you'll have a shedinja
level 20 (ninjask)
it evolves into ninjask/shedninja. (you can only get shedninja if you leave a slot open in your party when you have nincada.)
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)
Nincada evolves into Ninjask at level 20. However, Nincada will evolve into a Shedinja, if you have an empty slot in your party and a regular Poke Ball in your bag. If you want just Ninjask, you must need six Pokemon in your party.
In Pokémon Sapphire, Nincada will evolve at Level 20.
nincada evolves at level 20
Nincada evolves into Ninjask at Level 20.
Ninjask or Shedinja.
Nincada's gender does not affect its evolution. Nincada will always evolve into ninjask, however if there is an extra space in your party you should also recieve a shedinja. Its a two for one deal!!
You don't. You must evolve nincada in ninjask, but when you evolve it, have an empty slot in your party. After nincada evolves, check your party, 100% chance you'll have a shedinja
level 20 (ninjask)
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.
evolve nincada with a empty slot in your party.
it evolves into ninjask/shedninja. (you can only get shedninja if you leave a slot open in your party when you have nincada.)
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)
20