Board Thread:Questions and Answers/@comment-29414935-20171208224540/@comment-25305244-20171210215538

Also, Failure-Intolerance is based more on the villain's personality - their intolerance for failure while Destroyer of Innocence is based more on the villain's actions. There is no special rules for a Failure-Intolerance and Destroyer of Innocence since being Failure-Intolerant does not influence whether you can be a Destroyer of Innocence.