They are marked with a "P-" card number prefix
Necropotence with Dark Ritual was a defining feature of the format and very difficult to stop without the full suite of turn-1 free countermagic available to Magic as a whole
The best Fight cards in Magic: The Gathering , ranked by EDHREC popularity a real-world measure of playability across Commander, Modern, Pioneer, and all formats
Pokmon has a huge collector market and some extremely expensive vintage cards
Sabin had never wanted to be king, so Edgar used the rigged coin flip as a way to allow Sabin to leave Figaro guilt-free, and pursue his life as a monk as he preferred
I could do a whole separate article on Magic novels, however, so Ill save that for another time