This list aims to capture all the spells in sorcery which function as "Mass Removal".

The big 4 that started this list were the 5 mana mass removals: Poison Nova, Earthquake, Whirling Blades and Atlantean Fate. I expanded the list to include all spells that can kill multiple units across multiple sites. I ignored any removal that just hits a single location (the list gets kinda too big if you include that). I did include Black Plague and Great Famine even though they each kill one unit at a time, but positioning your units so that they can end up not being able to move out of the 2x2 square of one of these spells does still effectively result in letting your opponent get multiple cards removed by their single card.

I also left off some cards that can on occasion kill multiple things but that isn't their usual functionality (basically all the projectile shooters like magic missile and ice shards). A lot of cards can on occasion remove multiple minions but aren't really designed for that and I had trouble deciding whether or not many of those would make the list. I decided to include the piercing projectile cards in the end, but not the limited number of single damage projectile cards (though I did include Aracane Barrage since that can be a lot of pings and often used to kill multiple minions).