Just want to point out that as a water spirit, we aren't going to be doing much raiding. At least not in person. We'll ferry across a few ships filled with our mortals, maybe try to bait a fight near the shore where we can help out better (only works the first couple times though), possibly bless our warriors, then ferry them back home. As a former warrior however, we could actually lead our proto-vikings into battle and slaughter our foes for glory!
But the vote isn't for a warrior able to raid and lead proto-vikings. Not only won't they be vikings, not being on the water, the awoken hero is a lawgiver not a warrior. Also, people tended to build near the water, so assuming that we will always have to bait them into fighting by the coast is kind of silly.