I love a good board clear, and Explosive Getaway is really neat
A word of warning before I finish, though, especially if youre newish to Commander
Assuming that you can get around the tough Grixis casting cost requirements, this is a two-for-one almost every time you play it regardless of what happens next
Keruga, the Macrosage is close to a free roll in some builds of the deck, only costing a sideboard slot
When you fall behind, there are some great tools to help you slow your opponent down until you can build your board back up
Greel, Mind Raker Greel, Mind Raker strikes me as the worst horror commander because its discard ability targets a single player, and thats ineffective in EDH