Mulligans
Just a crazy deck idea using some of the new witch wood cards. The goal is to stall the game out until you have a hand of two Dead Man's Hand, Charged Devilsaur, Woecleaver, and Upgrade!. Then shuffle that hand into your deck and play woe cleaver, summoning a Devilsaur from your deck. Then, you can consistently repeat that by playing upgrade on the woecleaver. This will give you a constant source of damage from your devilsaurs, as well as Sulfuras.