While losing ink from your inkwell may seem like a deficit, the cards are returned to your hand, giving you back some of the options you may have sacrificed in the early game to gain ink
This is a no-brainer, but theres just no best booster to buy because it all depends on your need
Sacrifice Myr Retriever, picking up Scrap Trawler from your graveyard, while the Trawler on board picks up Mox Opal from the graveyard
For example, you could drop a one-turn or two-turn creature that can accelerate your mana, such as Wall of Roots or Llanowar Elves
In addition to forcing each player to skip their discard phase, Anvil of Bagardan grants each player an additional draw at the beginning of their draw phase, but then they must choose and discard a card from their hand, offering those playing with graveyard shenanigans the free discard outlet they would have gotten at the end of the turn but now just at the beginning, meaning they could take advantage of it during their respective turns