In accepting that mana advantageand by extension, time advantage (or vice-versa)is real and matters, you can clearly see how devastating these exchanges can be
For example, if the top two cards of your library are Brainstorm and the modal double-faced card Valki, God of Lies // Tibalt, Cosmic Imposter, you will end up with a modal double-faced card that has Brainstorm as one of its faces, and either Valki, God of Lies or Tibalt, Cosmic Imposter as the other face, with either face as the front (your choice)
Lightning Helix on a battlecruiser is incredibly powerful, this makes for an excellent finisher that can handle threats and stabilize your life total
Seven Cards are being removed from Magic: The Gathering due to their racist content
Our deck has a handful of defender payoffs that can turn our little walls into real threats
Pretty much as above in most cases