According to a recent Reddit poll on the subject, the majority of votes landed on glossy sleeves based on pros and cons of visibility, shuffling, quality and texture
This is very good in constructed formats where you can be more guaranteed that the creature you are getting back is a bomb
"For example, this card here is based off a classic pixel-art game, and it's probably the first time in history where that pixel art has been reimagined as 3D fantasy art, so the card plays to people's nostalgia and their imaginations
They're also a two-mana Blue 0/2 that you can tap to draw a card, then exile a card from your hand face down
Aside from the far less potent Modern dredge deck, owning four copies of this ridiculously expensive card is just about the only way to play a competitive Dredge deck and in the Vintage format of all places