Purple Blazes are a drop item from Scorchers. Purple Blaze which is one of the ingredients in making the Scorching Sword, a sword that does 26 melee damage. This is one of the strongest swords you can get before entering the Non-Vanilla demensions. The downside is that it only has 500 uses, which is easily fixed with unbreaking III. Purple Blaze is also used to craft the Inferno Flame, a boss summoning item used to spawn the King of Scorchers.