I'm not the hugest Vader fan but I saw them with Immolation a few years ago and they were fucking awesome. Anyone who's on the fence about seeing them should go. If they were coming to Toronto I'd check it out for sure.
10/18 - King Diamond
10/24 - Pallbearer
11/01 - Suffocation
11/30 - Devin Townsend
12/06 - Distant Worlds: the Music of Final Fantasy