That's actually pretty cool. It makes for a fun, shared experience. I wonder if any servers managed to win?
I only found him because I was so impressed by the weather effects in the surrounding areas, and so went exploring. Then I saw people shouting that Odin was around!
Was this when there was thunder and lightning? If it was I had a feeling that could be Odin spawning.
No thunder or lighting. It was all silver/blue and foggy with little sparklies rising up from the ground. At first, I thought it might be snow until I realized they were moving in the wrong direction, haha.
Here's a screenshot: http://i.imgur.com/Wj7k8Zh.jpg