Beasts, existing since the Classic Set, are a conglomerate of all different types of native creatures in the world. Beasts decks almost tend to be aggressive with support in the following classes:
Dragons, existing since the Classic Set and started getting major support in Blackrock Mountain, represents the powerful creatures that are rulers of the sky and unmatched in power. Dragons, due to their high cost, tends to lean towards more Midrange and Control Decks. They are supported in the following classes:
Mechs, introduced in the Goblins vs Gnomes, represents mechanical contraptions. They tend to be aggressive minions decks, thanks to their lord and savior Mechwarper. While Mechs have playoff cards in all classes, the most successful were:
Murlocs, existing since the Classic Set, represents the amphibious pack fighters throughout Azeroth. They are low cost and usually in super aggressive. They are supported in the following classes:
Old Gods, introduced during Whispers of the Old Gods, represented ancient beings of great power dwell deep in the shadows of Azeroth. Each of them is a 10 cost game-ender that require their own specific builds to bring out their full potential.
Pirates, existing since the Classic Set, represent the sea-faring scourge with an affinity for weapons. They are very aggressive decks. Pirates are supported in the following classes:
Secrets are unique spells that activate on your opponent’s turn. Secrets only exist in Hunter, Paladin, and Mage. While they can be splashed in any decks, there are some decks that fully support running as many secrets as possible: