It doesnt just work as an aggressive tool, either
Cards like Jace's Archivist can especially help give you card advantage because youll still be able to use most of the cards in your graveyard as well as the ones in your hand
Essentially, the card's -2 ability, which can fetch artifacts out of your sideboard, gives the deck too wide an arsenal of tools, allowing it to handily tackle any strategy it comes up against
While you don't have precise control over those options there are still different 8 possibilities of which you do have some control and, most critically, none of which are bad
Although its not on this list, Pouncing Shoreshark also fits into this line, and putting both of them back is full of value
Bonus: John Avon Alter Back in 2017 it was announced that we would get a very special guest at that years UK National Championships: John Avon