Thread:Raised By Wolves/@comment-2212492-20160602130923/@comment-2212492-20160612061232

There's a speculation that Iwanko and the starters are related to the theme of alchemy like the legendaries with Iwanko representing land, Rowlet representing wind,  Litten is fire and Popplio is water.

Another option is that they could be part of the rumoured synergy evolution after you develop bonds with them.