For example, if you scry 2 and put two lands on the bottom of your library that you had absolutely no use for, people will often describe this as drawing two cards. Of course, you didn't actually put any material in your hand, so you didn't actually draw anything, hence the virtual card advantage
With the addition of this as a common card, there are more rare slots to be opened up for further development while Foundations is legal, meaning more opportunities for interesting cards
Later on, youll have plenty of lands on the battlefield, but no cards in your hand
Cultivate , Farseek , Kodama's Reach , Rampant Growth and any variety of dual lands and tri-lands are vital here, and Evolving Wilds and Terramorphic Expanse can seek out basic lands
much of the game occurs there, and even decks that dont rely on attacking to win must be mindful of what their opponents can do, with interactive spells to render them inert