It's a really cool concept. I dig the art and the viking theme, and the deckbuilding elements seem like they have a lot of legs, that there's something cool going on there.
The thing that would have helped me a lot is more visual feedback about what I can do, and what the result of what I do is. It wasn't immediately clear when I could play things, how much I had to spend, what the effect would be if I did something, and what exactly happened after I played a card.
It is pretty neat how you can construct your starter deck at the start, and I'd like to see more about how the deckbuilder would play out in how you equip items to make your deck.
Also, I'm curious. The card art looks really good. Did you do it yourself?