If you’ve been playing ODIN Valhalla Rising for a while, you already know that ODIN Diamonds are the lifeblood of progression, whether you're gearing up, trading, or investing in character growth. But short-term gains often lead to wasted resources and regret down the line. If you're serious about maximizing your ODIN Valhalla Rising Diamonds for the long haul, these 18 proven strategies...