Post death metal? Is that a thing now? The dudes in the awesomely named band Cut The End would like you to believe there is, I guess. I dunno, though. To me, it just sounds like expertly crafted heavy offerings of the post metal / post rock sub genres with a more aggro vocal delivery than either usually employ or allow, let alone champion and herald, with sludge and death metal flavors. I hate throwing around the word "epic", but this shit really is a sort of sludge tinged death derived version of post heavy metal that is, absolutely, epic. Check it out.
Cut The End - "Dawn's Death To Dusk"