Dragon Rouge

This deck is based on the combo between Necrium Apothecary and Deathwing, Dragonlord which can also be activated using Necrium Blade which can also be draw from Cavern Shinyfinder
the combo however does not always work, in fact they are cards like Alexstrasza or Dragonqueen Alexstrasza that allow you the same to conclude the match playing Deathwing, Dragonlord without the combo.
the cards in the deck can be replaced except just Deathwing, Dragonlord and Necrium Apothecary
in fact you can for example replace Malygos (which serves practically nothing in the deck) with Waxdread