Well, the little "and each player" that's tacked onto the end there means that Cave-InCave-In can come down the turn you play your Niv-Mizzet, and draw you six cards to get the ball rolling
Of course, we're placing a lot of emphasis on "most of the time" here
For one thing, it ignores the games lack of traction and financial success at home in Japan, which may have informed the decision
though this isnt the first time the Sea Witch has appeared in Lorcana, the Amethyst Ink coloured, Ursula, Sea Witch Queen card (numbered 58/204) is perhaps her strongest yet, which is fitting considering the sets theme and story is based around her
Let me know in the comments below or over Draftsim Discord
One item that features heavily in the lore, mechanics, and aesthetics of Magic is the book