Mox Sapphire doesn't do anything more than provide a single blue mana, but the fact you could play as many of these artifacts as you wished on the first turn meant it was theoretically possible to have far more mana than your opponent if you received a lucky draw
If the Equipment copied by the token had any "when [this permanent] enters" abilities, the token also has those abilities, and they'll trigger when it's created
The obvious comparison for this commander is Skullbriar, the Walking Grave
instead, it asks you to diversify the mana values across cards in your hand, cycling them into a new hand, and floating a bunch of free cards into play
Naturally, the card will do its best work in Rat Typal decks, but I think it works perfectly well on its own
Ezuri, Renegade Leader One thing that Elf decks can always capably employ are mana sinks