The Wither is a hostile creature that is not generated automatically, but must be summoned. It is the second boss added to Minecraft. Its body consists of a central structure from which three heads protrude. It is a flying creature.
This creature when it appears begins to develop its life bar, from half, to the maximum. Once this process is completed, it will create a strong explosion that will affect all creatures that are near it, including us. Then it will start flying in random directions, shooting Wither skulls that explode when they hit a block or entity.
The Witherde must be summoned to be generated in the world. The way to summon it is similar to the one used to create an Iron Golem, but with different materials. We must place a central block of Soul Sand, on top of this we will place three more blocks of Soul Sand in horizontal position, on these last three blocks placed, we must place three wither skeleton heads, one in each block, and the Wither will appear.
If you like this creature and in addition to details you want to get its face to make crafts or as a profile of social networks and forums, here is the Minecraft Wither Face. You can download and print it.