Instead of preventing two legendary cards with the same name from appearing on the battlefield at the same time, this rule prevented two planeswalkers sharing the same subtype from appearing at the same time
Magic uses a familiar condition ladder, and you should learn to read it on sight: Near Mint: sharp corners, clean edges, a flawless surface, fresh from a sleeve
What does Arnold Coins & Cards buy & Sell
With a lineup that highlights Pokmon , sports cards , One Piece , Dragon Ball , and more collectibles, this is the kind of local show where you can spend the day browsing vendor tables, flipping through binders, and seeing what stands out in person
For older sets, you'll know if you recognise the set symbol, if you don't the end date on the copyright range printed on the card tells you the year that set came out, and you can find a list of sets in many places (I have usually looked here, but wikipedia and scryfall also have lists) Finding the year will give you only a handful of symbols to compare