User blog comment:B214/Question and Answers 6/@comment-203.59.190.84-20170605110837/@comment-1359322-20170605112353

Divine Dividing only halves power and add the halved power into the user, it doesn't include the traits of the user's power.

Even if Vali use [Divide] on Rias, Vali wouldn't obtain the Power of Destruction. Similarly, Ise using [Transfer] won't give the receiver the ability to double their power.