World Pillar

The World Pillar is a titan-made stone which is inside the Temple of Earth in Deepholm. It bears the weight of all the elemental and magnetic forces in the Elemental Plane.

When Deathwing broke through into Azeroth, the World Pillar was shattered into three pieces, the upper, the middle and the lower. If the World Pillar had not been restored, Deepholm would have collapsed into Azeroth.

When the shamans of the Earthen Ring felt the distress of the planet, they worked to repair the damage Deathwing caused. After Thrall gave the title of Warchief of the Horde to Garrosh Hellscream, he and other shamans like Nobundo and Muln tried to stabilize the rift within the Maelstrom, keeping Azeroth from collapsing into the Elemental Plane. Forces of the Horde and Alliance later joined the Earthen Ring to battle the Twilight's Hammer in Deepholm, and recovered the missing pieces of the World Pillar. Rather than joining Ragnaros and Al'akir, Therazane the Stonemother chose to side with the mortals to prevent her enemies from taking her realm, or even, its eventual collapse.

The World Pillar was eventually repaired by the Earthen Ring shaman with minimal casualties.