User blog comment:Lordofsnakes/Ask the Terrorcons (And all other Transmorphers That I plan to feature)/@comment-28358106-20161209171402/@comment-28358106-20161216013254

"She had to choose a form that we knew had enough written material for me to program into her secondary Rune Core, because the Spark energy that tethered them together required the host to have one primary form and at least one partial secondary form. She chose a Jinko because she wanted to have some ability to defend herself and our family more effectively.  For a source behavioral code I used the entire thirty six volume written work of an ancient Jinko, Zhu Xiaoyu."

I chuckle. "Also, because of a running gag we had. Every time she would get angry, the kids would call her 'Tiger Mom.'"

(I also explained this in more detail when I talked to Flamer in my QnA)