He began the Cataclysm, an event that nearly tore Azeroth apart. Years later, Deathwing emerged from his realm, outfitted with elementium plating that barely held his crumbling form together. He was not killed however, and retreated to the elemental plane Deepholm to recover.
He manipulated both the Horde and Alliance during the Second War, but was ultimately defeated.
Deathwing was the most powerful servant of N'Zoth, and acted as his instrument of destruction. After this, he took a new name - Deathwing, Aspect of Death. Only those plates kept his power from destroying his body. Goblin smiths forged an armor to serve as a vessel to contain his raging powers and keep it in check. Neltharion's body cracked open, revealing his molten heart, and magma and fire flowed off his chest. However, driven mad by the Old Gods, Neltharion turned on his siblings during the War of the Ancients. Neltharion the Earth-Warder was the leader of the Black Dragonflight and one of the five Dragon Aspects, beings empowered by the Titans to be the immortal guardians of Azeroth.
