2019-2020 - Illusions - Mystique - Sapphire

Insert Parallel
16/20 Cards

Not a product I am very familiar with, but these definitely caught my attention. The blue (Sapphire) is a parallel of this acetate insert.

I don't remember if it was on this forum or elsewhere, but I remember reading a discussion about case hits and someone thinking that if this was a case hit (or very limited print run), it would have been very sought after.