This often takes the form of removal, like Thraben Charm and Will of the Mardu, though some cards buff creatures based on how many you control, like Heidegger, Shinra Executive and Team Avatar
It allows players to make their decks more unique
But probably the best way to leverage the size advantage of our vehicles at least for true aggro decks is to Fling them at people
Vindicate cleanly answers anything, but at sorcery speed
Sokenzan, Crucible of Defiance may not be as good as Otawara, Soaring City or Boseiju, Who Endures, but it fits into what red decks want to be doing, and Ive set up my share of lethal attacks thanks to the Kamigawa land
Sure, it's better in a Zombie deck