Sound to me like you choosing the hard way.
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You need mono black Sorin Markov, he's a staple in EDH if you're playing black. He comes in and boom, your opponent is at 10 life. Also, try grave pact to punish them for when you sac you own creatures, it combos well with dictate of erebos, and is one mana less. Also to kick sac triggers and kill your opponent's creatures go with Attrition. Lord of the void is also a good punishment card, hands down one of the best demons, and it's cheap. Kokusho the evening star needs to go in as well. If you can cycle it with sacrifice and revival it can be a win con all on its own.
I agree with kingash, a deck based around charging badger is a deck worth playing anywhere, including a tournament.
^Person who plays an extraction deck^Person who isn't a douchecanoePick ONE