[quote=@Hillan]
<Snipped quote by Jotunn Draugr>

Wouldn't it, in true Viking fashion make sense for him to also look for a worthy opponent? Have a good Valhalla-worthy fight.

[/quote]

Ah, but Surt comes not from Valhalla. Surt is far older than the gods of Aesgard and Vanaheimr, and they too must die, for Surt's dream to be realized. 

For the most fertile soil is carbon-rich soil. Surt seeks to purge the world of of its current 'parasites', and let life start from the beginning again.