Arena Athlete was obviously in subsequent versions
While Nadu generates more value than you may know what to do with by putting your whole deck into your hand, the combo won't actually win the game for you
The article also indicates that nonfoil Shattered Glass is about as common as foil Generation 1 cards, so we get a rough breakdown of 75% nonfoil G1 (6 of 8 packs), 12.5% nonfoil Shattered Glass (1 in 8), 12% foil G1 (again, about 1 in 8) and finally foil Shattered Glass, which will be the 1 in 151 or so that we got from Hidetsugu, less than 1% chance
Worst case it's a Cancel which isn't terrible, so overall I will be quite pleased adding this to my Inalla, Archmage Ritualist deck
Older cards, like Pauls 28-year-old promotion, often see little nicks appear over time, like whitening in the corners
Then I got to the part where it says it does damage equal to the number of DRAGON'S you control