User blog comment:Jett Cyber/Tournament of Legends: Round 1/@comment-9062114-20131024005007/@comment-9062114-20131024021516

The only reason the Dovahkiin was able to destroy Alduin was because he knew, Dragonrend without it, he wouldn't have stopped him. Alduin was also a lot weaker because he wasn't following his destiny (that weakens him by the way). Alduin turned Mehrunes Dagon into what he is today. Dagon used to be the Leapper Demon King one day he betrayed Alduin, so he turned him into the Daedra of Desturction.