What you could potentially do is to fill you graveyard, Delve away the cards you dont need in the matchup, and shuffle the rest back into your library with [scryfall]Cranial Archive[/scryfall], which is also a cantrip, so youre only paying mana for the effect
This disruption of strategies can throw some decks for a loop, but give others the chance to try something they normally wouldn't be able to
A graveyard-centric deck might not want to rely on this as its primary way to access cards
However, trading can also be a minefield if youre not careful or considerate
Storrev is probably my next War of the Spark deck project
Duels can be fought between players via a game link cable, and cards and decks can be traded using the infrared communications port