Talk:Lucario VS Renamon/@comment-26270351-20171116133346/@comment-5429941-20171130214336

That is  partially correct, natural evolution is permanent,  but also is the evolution achieved though a tamer  in the source material,, since  Takumi, takuto and the rest of the main characters in the games have digivices, but their mosters are always in evolved form

Let just say Tamers just make evolution more practical  and in the anime they are able to revert evolution.In normal conditions a digimon needs expererince in order to evolve, but tamers can use their bonds to skip this step, and control evolutions.

Look in this video a wild Greymon (black) evolves in middle of battle to fight the main characters, thanks to the experience acquiered  in the fight.

https://www.youtube.com/watch?v=E3hR2p2yahg