Thread:RedstoneDemigod/@comment-25014034-20160924030216/@comment-26547082-20160925122628

So far I've killed 20 withers trying to find out just that, but none of them drop anything other than a nether star. I have also tried the looting enchantment but that doesn't yield any more rewards. It may be that it is just extremely rare, so I will keep killing withers to see if they will eventually drop a potion of decay.