(I know, ramping is not the best thing to do when you already have a lot of mana, but its better than nothing, and it also lowers your chances of drawing more lands.) Besides, these are artifacts, and there are plenty of ways to leverage them in other ways in the set
Search for Dagger (Borderless) (FIC-459) - Commander: FINAL FANTASY Foil Wizards of the Coast Rare null/null Whenever your commander enters or attacks, look at the top six cards of your library
That's growing with every cast, too
While this card has likely been power-crept out of any real play (due to the fact that any player with open mana can also create lots of their own furry, long-tailed creatures when the Liege bites it), it still stands as an important historical Squirrel-enabler, likely leading to it retaining a price above $5
You don't have to add four copies of each card to your deck though, and sometimes it's beneficial to have fewer copies and make room for other important cards