That means cards that help you search your other cards (Ultra Ball, Nest Ball, Battle VIP Pass) and the ones that let you draw, like Professor Research or Iono
At the beginning of each end step, if you attacked with a Hero this turn or a Hero entered the battlefield under your control this turn, draw a card
Time Spiral solves this elegantly, by making the wheel free for a tremendous advantage: a fresh hand and likely all, or at least most of your mana
In that way, these are similar to the Day/Night mechanic because they can flip back and forth and back again, as long as you're willing to pay the cost each time
(They're affected by summoning sickness.) Each of the tokens copy exactly what was printed on the original land and nothing else (unless that land is copying something else or is a token
Since the top of the meta didn't change significantly with "Ninja Spinner," and in fact, the decks this deck struggles against were on the decline, the foundation for it to continue to be successful was already in place