Each card has its own unique abilities and strengths, and when you play them at just the right time, you can turn the tide of the battle in your favour
This is just one of those cards that should be in any deck with flicker effects in them
Sometimes youll cast it just for indestructibility to save your creature(s) or something, but that isnt nearly as powerful most of the time
Once you let the board wipe resolve, all of your creatures will be back, unscathed the ultimate payback
On top of that, Emrakul never had to exist in a format with powerful graveyard hate along the lines of Rest in Peace, Leyline of the Void, or Scavenging Ooze, and the presence of those cards gives opposing decks much more ability to fight back against Emrakul