One of my favorite formats of all time combines Five Color, Highlander, and Pauper, into a deck that requires 250 cards, 20 cards of each color, only commons, and no more than one copy per common (other than basic lands)
You can better appreciate the scope of the games evolution since that first set by reading a how many MTG cards are there overview that catalogs the vast library of cards available today
The seller is "john-doe-deals" and is located in Traverse City, Michigan
There isn't really a solid contender for this slot
It enters the number of loyalty counters indicated on the card
While it's long since seen retirement in competitive play, this particular set has gained the status of "historical archive for the Kanto region" in the modern day, so collectors see it as a tribute to the classics, causing a surge in price for iconic cards