While I have included a few cards you wouldn't put in a drafting cube for being too narrow I have not included things like Ichorid and Nether Shadow, there are a couple of places in constructed cube formats where you can play those cards but you are essentially building around them and the decks are not even that good
Practically any care you pick is worth something, given that it's oldest set in the game, with the gaming having been released in 1993
You can make a deck that revolves around the number of humans you have in play, and for that, youll need many cards that create human tokens or care about you having humans
Spiders have always been underwhelming in Magic the Gathering and are almost always relegated to guard duty as creatures with high toughness and reach that could block pesky fliers
However, an older card such as a Pokmon which has the same name, but not the same stats and abilities (for example, the Sableye shown in the image above), would not be legal to include alongside a Sableye with the currently legal regulation mark