Karumonix, the Rat King about $1, and it functions as a lord, a discount, and a card-advantage engine all at once
When I played, I was constantly earning Shinedust, which can be used to create specific cards
Witch-king, Bringer of Ruin Witch-king, Bringer of Ruins attack trigger can do a good job removing threats from your opponents boards
Preordain Though Preordain shows you fewer cards than Ponder, it compensates by giving you a bit more control, allowing you to ship zero, one, or two cards to the bottom of your library before committing to a draw
Bleak Coven Vampires also works well with abilities that flicker it like Conjurer's Closet, or those that can multiply its triggers like Panharmonicon, enabling some interesting ways to use it as a finisher
Beyond that, the only thing we can say for sure is that the Bandai cards were officially released in 1996, and the Topsun cards were officially released in 1997