I've finally dipped my toes into the world of Dr. Wu's "Worlds' Smallest" scale of transforming robots with the purchase of E12 Blue Thunder vs. E13 Sky Glide...or better known as Thundercracker and Powerglide.
Unlike some of the other bio cards included with the toys from 3rd party companies, Dr. Wu's cards are slightly different. The stock used for the cards is a textured paper versus the normal glossy paper or plastic used. With the rounded corners, these remind me of playing cards. The art used for both the toy packaging and the cards is top notch. The back of the cards features Chinese (?) language along with some English in a very small, thin font.
Expect the Dr. Wu page to be updated again soon with more card scans as I kinda like these little guys quite well!