They are the only cards that will ever have the 1st Edition stamp (as far as we know)
In this article, well cover how the cascade mechanic works, what key interactions you should be aware of, and which cards and decks make the most of the mechanic
Kinnan, Bonder Prodigy takes a different approach than the 3 previous entries, electing to instead turbocharge your mana dorks, mana rocks, and any other nonland permanent you control that makes mana by enabling them to produce an additional mana of any type they produce
National Number: 493
Norman Osborn has cEDH potential, Multiversal Passage is fantastic color fixing, and Impostor Syndrome is a good card that also references a meme well
Synergy with flickers and discard payoffs like Tinybones, Bauble Burglar, Entropic Battlecruiser and Waste Not, then backed up by counterspells and alternate plans like control, reanimator and wheels