It was created by Ivor through the use of the Command Block, three wither skulls, and soul sand which was later destroyed after the fourth episode, It was programmed to follow Gabriel the Warrior's amulet. However, due to some mishaps, it became out of control and unstoppable, destroying everything in the way of the amulet. It was destroyed by Jesse using an enchanted tool in "A Block and a Hard Place The Wither Storm's behavior is similar to a regular Wither's, but it is on the more cataclysmic and dangerous level due to its power. Though Ivor programmed the Command Block that was used for its creation to ensure that his Wither would obey him, it ultimately went berserk and caused destruction throughout the land as it ignored him. Ultimately, the Wither Storm is a primal living force of destruction that only exists to destroy everything until nothing is left.

In "A Block and a Hard Place", Ivor revealed that the Wither Storm does not cause destruction randomly; when programming the Command Block that created the Wither Storm, he also programmed to have it follow the Order of the Stone's amulet, which explained why the Wither Storm followed wherever Jesse and his friends went (especially in Redstonia or Boom Town).

Compared to a regular Wither, the Wither Storm's powers are so immense that it is more like an incarnation of the God of Destruction. Its Wither Skull projectile's firepower is far more destructive than a regular Wither's and has developed the ability to project a powerful tractor beam that sucking in any mobs or blocks in it, and inflicts them with Wither Sickness upon being devoured. The Wither Storm can also display God-like strength and durability, as its tentacles can easily break through Obsidian walls like a twig, even before it reaches its massive size, and is immune to conventional weapons.

Jesse: IVOR NO!

It has been formed!

Ivor: You wont make it alive gabriel

Gabriel: I WILL!

Axel: Ivor get rid of it!

Petra: I'll deal with him!

Olivia: Petra NO!