(2011-09-22) If the permanent is an illegal target by the time Chaos Warp tries to resolve, it won't resolve and none of its effects will occur
Do Boros decks need or want an anthem that isnt Intangible Virtue
Sure, you can get some mileage out of Acidic Slime or Eternal Witness but if you're going to do the work to make something into a token, you should be able to stack its ability and not have to squander it in a sometimes fruitless attack
Yes, building with eight or nine MDFCs will increase the number of lands you have that will come into play tapped, but it shouldn't increase it enough to be problematic, especially compared to the consistency and power you gain from the spell-land hybrids
The only format in which its still legal is Canadian Highlander
Given that the last two here are uncommons, its not a huge deal if you want to test these out