yugioh side deck rules extra summoning VRAINS: How to Link Summon! Complete Hat Format Side Deck

Vigliance is a static ability seen on the example card pictured

(1) If this card is Special Summoned: You can shuffle up to 2 cards from any GY(s) and/or banishment into the Deck

is reliant on the IR port, the feature just plain doesn't work if you're playing on anything other than a Game Boy Color, to the point where it's entirely disabled in the first game's Virtual Console rerelease (though it does work the same as any other multiplayer feature on Nintendo Switch Online), and attempting to use Card Pop

Being an enchantment makes it harder to remove, and even if you rarely unlock Dim Oubliette, having it there is pure upside

Finding one in mint condition today is like finding a unicorn

It's easy to see why Red-Eyes often helped Joey out of a tough spot in his duels