double sleeved cards Star Wars: Unlimited Art Sleeves Sleeving Pack One pack contains 105 Art Sleeves and 105 Inner Sleeves The Ultimate Double Sleeving Guide

instead, I would like some input in knowing whether or not some of these cards are fake

Modern Japanese sets generally grade between 5890% PSA 10

It is a protective sleeve to insert each card to protect it from scratches

Morpeko: Morpeko is a very cheap one single prize attacker for Single Strike decks that have recently gained a lot of popularity because of the rise of Mew VMAX

There is also a variant of this card which features the silhouettes of what appears to be the Elite Four of Pokmons Johto region, and another which has a photograph of one of the finalists - there are potentially additional variants like this

Tempt with Glory, Tempt with Reflections, Tempt with Discovery, Tempt with Vengeance, and Tempt with Immortality