List of Sets with Darkvenom Dragon Cards
Darkvenom Dragons focus on winning by decking the opponent out rather than by reducing their life to 0. The main way they do this is with the Venom Swamp spell, which continuously mills the opponent's cards. They continuously destroy Venom Swamp and recycle it again to reuse its effects to burn out their opponent's deck while using stalling tactics. These strategies mimic the Black Dragons, as some Black Dragon mill cards can be put into a Darkvenom Dragon deck to increase the milling speed.
List of Darkvenom Dragon Cards
List of Darkvenom Dragon Support Cards