Minecraft wiki entry for Blaze_farming, associated text: There are many uses for a blaze farm. Blazes drop twice as much experience as normal mobs while only having 20 health points, the same amount as a zombie or skeleton. This makes blazes ideal for XP farming. On top of that, blaze rods are the only source of blaze powder which is needed for brewing and to get to the End. Blaze rods are also the fourth most efficient fuel sources; the top three being lava buckets, blocks of coal, and dried kelp blocks.