When you remove the last defense counter, battles are exiled and then cast transformed, but lands aren't cast
The creators also considered Rise of the Eldrazi a "Battlecruiser Magic " set, meaning it emphasized a slow buildup of powerful board states
The Second Doctor Few cards encourage opponents to leave you alone as effectively as The Second Doctor
Multani remains a powerful card that I think too many people have forgotten about, and wrote about it recently here: The Best MTG Commanders Youre Not Playing (But Should Be)
You can drop them into battlecruiser-level games and theyll hold their own, and might even do so up the scale some
Additionally, if you're playing three colors, you'll really want to play all of your "color fixing." Any land, like a Maestros Theater or Jetmir's Garden, is going to help make things easier on your mana