Infernoids rely on being sent to the graveyard to either be summoned or act as fodder for other Infernoids. They all have an effect that tributes a monster to be a D.D. Crow or Monster or Spell and Trap negation. This is a going-second version of the deck.
The idea is to play as little normal summons as possible to maximize the amount of mills on Monster Gate. Lair of Darkness is a great support card, allowing you to once per turn tribute your opponent's monsters to activate your effects. You can take out Dark Ruler No More for any going-second card you'd like, such as Evenly Matched, Lightning Storm, Infinite Impermanence, etc.