Nothing - Edit 1
Before modification by rAndy aL at 23/11/2009 05:09:51 AM
The Dark One's ultimate intention was to capture Rand and to break him down at his leisure while a captive of the Domination Band and Semirhage at Shayol Ghul.
[citation-needed]
The Dark One (via Shaidar Haran) told Semirhage that, but since when do we trust the Father of Lies? About anything. Semirhage was a useful tool that was expended for a greater purpose: turning Rand to the Shadow.
Even if that wasn't the Dark One's plan, I don't think he'd mind. Chaos is chaos, and Rand just separated his allies more than the Forsaken ever managed.