Oh man, too many to count.

Children of Bodom
Lamb of God
Mastodon
Slayer
Pantera
Cannibal Corpse
Amon Amarth
Necrophagist
Deicide
Death
Kalmah
Immortal
Cradle of Filth
Bathory
3 Inches of Blood
Catamenia
Immortal
Nile
Norther
The Black Dahlia Murder

I assumed since this is a "Dream Tour" we can used now defunct bands as well. And yes, I know my list is long, but that would be my ideal tour, mostly death metal. And I probably would add more, but I don't want to go crazy with it.