Which cards are truly the best
Card not found saw some play in those days, so Card not found was probably better than people gave it credit for in those days, but deck design was nowhere near the level its today
Theres a ton of applications for this: you can elk your own cards once youre done with their effects, you can elk the Food token he makes, and best of all, you can elk your opponents big creatures and artifacts essentially making Oko a persistent answer to that your opponent will need to play around
Almost reminds me of the Gym Gengar over the grave in level of spookiness
The element of surprise leaves opponents unlikely to anticipate or prepare counterplay for a card like Reincarnation, and its a pretty powerful card even by the standards of black reanimation
Furthermore, no password that has been used for non-card unlocks or featured in non-game cards have ever been repurposed, whether in another video game, or in another game card