Demons aren't just for hunting...
Big Demon Hunter is a control Demon Hunter deck type that uses late-game Demon minions with Demon synergy effects.
The bulk of the deck's power comes from large, high-cost demons like 
Taintheart Tormenter and 
Pit Commander which are brought into the board with cards like 
Raging Felscreamer, 
Caria Felsoul, or Sigil of Reckoning. They use a number of mid-game AoE and Lifesteal spells to stabilize beforehand, such as Immolation Aura and Eye Beam. Other late-game threats like Priestess of Fury continue to add pressure after they've established control of the board with big demons.
Standard cards[]
The following cards are usually in the deck.
Core cards[]
The following cards are played in most or all versions of the deck:
Optional cards[]
The following cards are played more than occasionally, but not always:
Wild cards[]
This section concerns content exclusive to Wild format.In addition to the Standard cards, the following Wild cards are played in most or all versions of the deck:
Core cards[]
Optional cards[]
History[]
Originally, the rampant success of aggro and midrange Demon Hunter made Big Demon Hunter not only generally outclassed, but their popularity resulted in the presence of many Warlock decks running 
Sacrificial Pact, which countered Big Demon Hunter moreso than any other Demon Hunter archetypes. With their biggest counter and other Demon Hunter cards nerfed, the deck started to see presence in the meta.