You could replace the rare dual lands with some common tapped dual lands, and it would still function, but it would be less competitive because we'll have to play off-curve sometimes
Now, I am not the aforementioned Sam Black or Patrick Chapin, so a well-oiled machine is difficult to put together
The "Number" then transforms into its full form (depicted in the card artwork) through various means
While there are other cards that can provide similar benefits, such as Rhystic Study or Consecrated Sphinx, which offer more control over card draw or can generate overwhelming advantage, Kami of the Crescent Moon can still see play in casual or themed decks where its spirit type and lore are relevant, but it may not be the optimal choice in competitive settings
You can only use this effect of "Tool Box" once per turn
The passive can fire on Life removal during either player's turn, but only once per turn, and Zeus's On Play effect fires exactly once, the instant he's played, not on demand later