Have your Nincada in your party. Deposit a Pokemon from your team in to your PC, leaving you with 5 Pokemon (one of them being Nincada). Make sure you have an extra pokeball of whatever pokeball you used to catch Nincada in your bag.(E.g. if you caught Nincada with a standard pokeball, have a standard pokeball in your bag. If Nincada was caught with a Great Ball, have a Great Ball in your bag.) Then, get your Nincada to level 20 (or above) to evolve it into Ninjask. When you look at your party, you will have a Shedinja in the spare slot, and the spare pokeball will be gone. Hope I helped!
Lushbob
First all you need is to have a free space in your party and a nincanda raise your nincanda at 20 level and it will evolve into ninjask in the free space you had, the shedinja will appear
it evolves into ninjask smart one
It is suppose to evolve at the Level of 20,but if you want it to evolve later it can evolve anything after it is at Level 20.
It will evolve by level. Teddiursa will evolve into a Ursaring at level 30.
They evolve at level 36
It will evolve at level 36.
They evolve on level 40
it evolve on level on 64
If you want to get a shedninja fallow this 3 steps and you can made it.1.Get a nincanda and put it at the top of the group.2.Put ONLY four more members of Pokemon witch ever you chose but the first should be nincanda.3.Evolve it to ninjask (Be sure that a space is at the last of the teams)Then tada here it is your very own shedinja :) i hope this well help you to defeat (Gym leader Wallice and elether 4's glacia)
if you dont let it evolve at the required level of level 20. itll try to evolve at every level following.
Pikachu do not evolve by level. They evolve when a thunderstone is used on them.
To evolve a Sandshrew level it up to Level 22 and it will evolve into Sandslash.