You cannot evolve Ninjask into Shedinja. Nincada evolves into Ninjask at Level 20 at which point Shedinja will appear in your party provided you have an empty spot and you have an extra Poké Ball in your bag.
You'll need to evolve it from Nincada at level 20.
Ninjask doesn't evolve.
ninjask dosent evolve
you catch a nincada then u lvl it up to lvl 20 but make sure you carry only five Pokemon with you when you do because when you hit lvl 20 nincada will evolve into ninjask and you will get shedinja free
ninjask does not evolve....but if you evolve nincada he will evolve into ninjask if you have a spare slot in you'r party then you will get shedinja
Ninjask cannot evolve any further. If you are meaning Nincada, it can evolve into Ninjask at level 20, but it can also evolve into Shedinja, if you have an empty party slot and a Pokeball with you.
No Ninjask cannot evolve but Nincada evolves into Ninjask at level 20 but if you have a poke ball and a empty slot the empty slot will be a shedninja
ninjask doesn't evolve but if you have a empty slot of your Pokemon team when nincada evolves to ninjask a shedinja will appear in the empty slot.
it doesn't
it can't
Ninjask cannot evolve.
"ninjask doesn't evolve but if you have a empty slot of your Pokemon team when nincada evolves to ninjask a shedinja will appear in the empty slot."