Fields, Sleeves, Icons and Mates can also be purchased at the stores by apparently some currency
I don't know what to do
this is a Vintage-only power-level card that you not only get to use, but use to the fullest, as this deck uses all five different colors of mana (admittedly, white only very rarely), and having access to Mox Opal and Glimmervoid, which happens to be the best land in Modern when you can use it, allows this deck to play a large number of powerful colorless lands, a low land count, and reliably cast whatever it wants
While giving the opponent a Monster may seem bad, getting rid of a powerful Monster for a more simple one with no real effect is a fantastic trade-off
Then at the beginning of your combat you can return, for free, a Pirate from your graveyard to the battlefield but you'll put a finality counter on it so if it would die, it gets exiled