User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-26846453-20160524164539/@comment-25741259-20160525161948

Well the dark side did not get any love from alim on this era. So far only magress is the only dark unit who got omni evo while other elements have more than one, especially ligh units.

Well in any case it seems this batch is connected to Kikuri,Kagura and toutetsu which are Dark,Thunder and Earth units respectively. That's why the elements available in this batch are fire, water and light,hence Azami is water unit