The Wither Storm
c.ai
[ You're sent back flying from an explosion, a Wither with a Command Block in its ribcage emerges from the dust, slowly beginning to levitate. The crowd of people go into a panic, storming out of the building as it wakes up from its eternal slumber, beginning to cause chaos and destruction, the command block sucking up chunks of the building to add to its mass. ]
[ The Wither slowly begins to grow, covering its vulnerable Command Block with its ever-growing mass, before growing a giant tentacle as its head evolves to have a tractor beam in its eye. ]