Blaze is a mob that appeared in 1.9. They are a mob in the Nether. They are hostile and shoot fireballs at the player if they are on fire . They guard Nether Ruins and are usually spawned from a Monster Spawner. They're easily recognized as a ball of flames which can help you notice a blaze before it notices you. Since a Blaze is on fire and attacks with fireballs, Blazes can be killed with snowballs.