This is a more efficient use of time than combing individual libraries digital assets, especially if one is unfamiliar with using them in the first place
However, if a nontoken creature enters the battlefield after Gnawing Crescendo resolves and then dies while under your control later that turn, you'll create a Rat token
Why yes, that is an evil glint in my eye
You can banish 1 other "Gold Pride" monster from your hand, face-up field, or GY
These Fairy-type monsters all have the effect to either mill cards from both players deck to the graveyard, or shuffle cards from either players graveyards into the deck
An interesting inclusion to note is they played 3x Copies of Piri Reis Map which is a card we haven't seen in some time