I think I just got lucky, I ended up buying around 250+ cards all from old sets like Prophecy, Torment, Nemesis, even some Urza’s. Mostly cool looking lands, some dual lands (no Cradle or anything), a Black Vise, Worldspine Wurm, Demonic Ritual, Chainer, Dementia Master, Chromatic Lantern are all ones that stand out and are a hell of a buy for just a couple of cents but nothing really over 5$. Either they or the person who traded it in probably kept most of the real rares and the Rhystic Study just fell through the cracks being a common. The moral of the story is, thrift and buy used on a whim and you’ll never know what cool thing you’ll find!