Yeah, it would definitely be a swap with Firestorm as the removal option. So, you are not using LEDs or Breakthroughs until later so you can keep Firestorm in hand and clear the elves? Huh. I had not been playing it that slowly. I am probably too aggressive and not patient enough in sideboard games.
Would you agree that
Firestorm is better for clearing multiple creatures, but
Crippling Fatigue is better for killing individual problem creatures (such as containment priest)? Is it down to metagame, or is Firestorm just miles ahead overall such that it's just wrong to be going with CF over Firestorm? Don't get me wrong: I'm using 4x Firestorm. I'm not on some crusade for CF. Just trying to get a better feel for the strengths and weaknesses we are building on. I'm just not often using Firestorm to kill more than one creature, so I'm a little lost.