The Coming of the Lord of Destruction
From Diablo Wiki
"And a child will cradle Terror in his breast as the heart of man falls under the shadow.
A Wanderer will pass through the ancient lands trailing chaos in his wake.
The Three Brothers will be reunited as the mortal world trembles before their might.
And so it was foretold that the Three, once reunited, would be shattered again --
And the last of them would set his sights on the holy mount. The warnings held that
Their defeat would be illusory - that the final gambit had yet to be played . . ."
- * *
And now at last the storm surges forth from the southlands, and the hand of Destruction
Down upon the shores of the mortal world - to drown the guilty and the innocent alike.
- Excerpt from the Prophecies of the Final Day
- Diablo II: Lord of Destruction Game Manual