Honedge evolves into Doublade starting at level 35.
Doublade can then evolve into Aegislash at any level by using a Dusk Stone.
Helioptile evolves into Heliolisk by using a Sun Stone and remains its Electric and Normal typing.
The evolution of Honedge is Doublade.
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Espurr evolves into Meowstic starting at level 25.
Spritzee evolves into Aromatisse by trading while holding the item Sachet.
No, Mewtwo cannot evolve into Mewthree. Mewthree isn't an existing Pokémon however Mewtwo can use a Mega Stone in Pokémon X and Pokémon Y in order to mega evolve during battle into MegaMewtwo.
Scatterbug evolves into Spewpa starting at level 9. It will later evolve into Vivillon once it reaches level 12.
Both Helioptile and Heliolisk have Dry Skin and Sand Veil as their standard abilities. Their hidden ability is Solar Power.
Sunkern, Gloom, Cottonee, Petilil, and Helioptile evolve using the Sun Stone. Sunkern evolves into Sunflora, Gloom evolves into Bellossom, Cottonee evolves into Whimsicott, Petilil evolves into Liligant, and Helioptile evolves into Heliolisk.
You can evolve Eelektrik by using a thunderstone.
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At level 42.
Mewtwo cannot evolve, but it can mega evolve temporarily in Pokemon X, Y, Alpha Sapphire, and Omega Ruby by letting it hold a Mewtwonite X or Mewtwonite Y.
Chimecho is unable to evolve as of Pokemon X and Y. Chimecho does evolve from a Pokemon called Chingling when it's at max happiness and during night time.
No, because Mega Evolution wasn't introduced until Pokemon X and Y.
Ducklett evolves at level 35.
Machop evolves into Machoke at level 28.
Espurr evolves into Meowstic starting at level 25.
Does Bergmite evolve