I don't think I have any particular way of introducing these cards as anything other than "A bunch of random stuff I haven't shown you yet, and the reasons why they are in my collection." Are you going to yawn?
The remainder of these cards serve as a "type collection update" for many of this year's parallels.
Exciting, huh? I am a bit surprised that I could get some of these insert parallels so quickly. A little bit of luck in the auctions, I guess!