Virtual Cards in Urza’s Block
Eric Taylor creates the concept of “virtual card advantage” using as examples cards from the Urza’s Block.
Card Advantage
Mike Flores gives a lot of examples on how card advantage works and how to play better using the concept.
Taking Card Advantage
In one of the seminal Magic theory articles, Brian Weissman sets up the concept of Card Advantage in a way that’s both easy to understand and still relevant to this day.