It evolves using a Dusk Stone, not by level.
Honedge evolves into Doublade starting at level 35.Doublade can then evolve into Aegislash at any level by using a Dusk Stone.
The Pokemon that can evolve once you use a Dusk Stone on it are Doublade, Misdreavus, Lampent and Murkrow.
no duskull can't evolve with any stone. he has to be at level 37 to evolve to a dusklops and then after that he has to be traded with someone while holding a reaper cloth. but it is well worth doing it because he is very good if used with the right moves on the right pokemon.
Doublade is #680 in the national pokedex, and it is a Steel-Ghost type Pokemon.
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.
Murkrow, Misdreavus, Lampent and Doublade can evolve with a Dusk Stone into Honchkrow, Mismagius, Chandelure and Aegislash, respectively.
It will evolve by level. Teddiursa will evolve into a Ursaring at level 30.
It will evolve at level 36.
They evolve at level 36
it evolve on level on 64
They evolve on level 40
Kricketune does not evolve, but a Kricketot will evolve into Kricketune at level 13.