http://caraneir.bandcamp.com/
This is one of the best and most original extreme metal acts I've heard from recent years. It's hard to describe what they do, they draw influence from extreme genres of all sorts. Sort of...experimental, highly technical black metal. Newer stuff incorporates post-metal and more atmosphere and melodies, and the older stuff is faster, grindier, overall more brutal. But, at least to me, they've maintained a pretty consistent sound. There's hints of grindcore, neocrust/screamo, death metal, sludge metal, prog, and the aforementioned atmospheric/post-metal. They've released a lot of stuff, and it's all there on their bandcamp, most of which is name your price.
From their newest full length
Some older stuff