Exile that card, then that player shuffles
When it swings it will often slip through as your foe isn't going to want to trade down with a better flyer like Consecrated Sphinx or Akroma, Angel of Wrath that would normally laugh at an attacking 4/4 with flying
It isnt the kind of card that can really take the game over for you, but it is such an efficient deal that its worth a very high pick
Mishra's Command is an X spell with the ability to shoot a planeswalker for X, a creature for X, a discard up to X cards and draw that many or pump a dork and give it haste
Luxior can still be attacked even if it's attached to a creature
Then theres the introduction of the Brawlers Guildhall, formerly known as Brawlidays, and it works exactly the same