That's nasty, because there is always someone frumping around with a bunch of key permanents to take out, like Primeval Titan, Deadeye Navigator, Elspeth, Sun's Champion, Karn Liberated, the aforementioned Mind's Eye or Sylvan Library, all of their non-lands
They don't teach you how to build a tournament competitive deck, you have to almost figure that out on your own
The next step is to think about where black and white overlap with one another, and capitalize on that
2017-04-18 The converted mana cost of a split card is determined by the combined mana cost of its two halves
As you can see, confusion can be a very frustrating status condition for players to deal with, as it can lead to a lot of unpredictability in battles
Any other case results in a DRAW