There might be a little confusion regarding the MS+ Design Cards.
The Mirroring and Shadowing only works on the MS+ Design Cards.
All of the new Slice Design Cards have that feature. They include:
- Mix & Mingle
- Spook Alley
- Words & Expressions Holiday
- Vintage Findings
- Mistletoe
- Think Pink
- Dance & Music
- Farm Life
- Under The Sea
- Fonts: Handwritten
- Faith
- Fonts: Playground
- Jungle
- Home Sweet Home
The MS+ Design Cards also upgrade your system with Speed Boost. Speed Boost stays on your Slice allowing you to cut faster, regardless of the Design Card you use.
I hope that helps to clarify.