This provides a strong case for this card to be one of the better equipment options that you can get for just 1 mana, especially on an uncommon
They're an absolute blast to shuffle and can be effectively used for any situation constructed decks, Cube, Commander, you name it

TOP 10 Most Expensive MTG Cards in History 1993 Magic: The Gathering Alpha Black Lotus $3,000,000 2023 Magic: The Gathering The One Ring (1/1) Tales of Middle-earth $2,000,000 1993 Magic: The Gathering Alpha Mox Jet (PSA 10 Gem Mint) $108,000 1993 Magic: The Gathering Alpha Lord of the Pit (BGS 10 Pristine) $105,000 1993 Magic: The Gathering Alpha Timetwister (PSA 10 Gem Mint) $84,000 1997 Magic: The Gathering Splendid Genesis (Richard Garfield Promo #RG97) $72,000 1993 Magic: The Gathering Alpha Time Walk (PSA 10) $63,000 1993 Magic: The Gathering Alpha Vesuvan Doppelganger (BGS 9.5) $63,000 1993 Magic: The Gathering Alpha Mox Sapphire (PSA 9) $46,800 1993 Magic: The Gathering Alpha Shivan Dragon (BGS 9.5) $44,400 Most Valuable MTG Cards To Collect (TOP PICKS) 1997 Magic: The Gathering Splendid Genesis (Richard Garfield Promo #RG97) Extremely Rare: With only 110 copies ever printed, this private promo card was never publicly released, making it one of the rarest Magic the Gathering collectibles in existence

Jet Medallion reduces the cost of the commander tax on your black commander and Goblin Electromancer cancels out Thalia, Guardian of Thraben
Youre always two-for-oneing yourself and this card is pretty restrictive, only hitting noncreature spells for free on your opponents turn
As of right now, there is no absolutely correct answer but more than ever before we are seeing real exploration into the concept of how large should your deck be