There are technically 26 different Magic: The Gathering color combinations that you could use when building a deck, and 25 of them have obscure lore-based names attached, which experienced players tend to use freely, but can be confusing for newcomers
No, it has no worthwhile uses
Many thousands of cards had been released since I last played
While 1st Edition copies command five- and six-figure prices, the Unlimited print run remains the most accessible way to own a piece of that original magic
Connecting with Friends You can use a custom code to battle or trade other players, whether locally or online
Source Thin 2D stamp: 3-Thin708532 126 KB Then, as again mentioned by @cullers , Thin stamps were printed on Holo Base Set cards, which later also became the standard for the next sets