Magic Hat is one of my preferred breweries (others are Victory, Stone and of course, Dogfish Head) partly because they're in one of my favorite small cities (Burlington, Vermont) but also because they experiment so much with different recipes.
Their new winter seasonal is called Howl and is a "black lager". If you drink craft beer, you'll know how rare lagers are, since it's a lot easier for beginners to make ales. One exception is Victory's Prima Pils, which is my favorite pilsner-style.
Howl is not very high in alcohol, but has a heavier taste than, for example, Guiness, but without the shapness that stouts can have.