I am trying to raise a Ability/Skill Mag with that has six arms. But the trouble is that everytime I raise the skriking skill higher for 5 level interval, at level lv40 it changes back to Striking/Blow Mag and gives me a Unicorn. So I try to raise the Ability stats again and it changes back.

So my question is, is that going to be keep going back and forth unless I always have the Ability stat higher than the skriking skill? Seems like a feature of this game??