Decepticon

Decepticons are a subspecies or faction of Cybertronians from the planet Cybertron.

Biology
Decepticons share a similar biology to other Cybertronians, except they generally transform into transform into attack vehicles and weaponry.

Powers and abilities
Decepticons share many of the same abilities as other Cybertronians.

Weaknesses
Decepticons share many of the same weaknesses as other Cybertronians.

Culture and society
Decepticons are typically concerned with such things as conquering Cybertron, defeating the Autobots, amassing large quantities of energon, developing powerful weaponry, and beating people up, though not necessarily in that order.

Decepticons are led by the most powerful of their ranks, most commonly Megatron. This tends to cause some conflict, given how generally every Decepticon thinks that they are the most powerful. Decepticons are also considered to be ancestors of the Predacons.

Decepticons are not exactly the most compassionate beings in the universe, but not all fight for greed. More than a few have a sense of honor, while others believe that Cybertron would be better protected by aggressive expansion. Ultimately, the Decepticons desire to protect their homeworld, even if it is at the expense of others.

Various Decepticon subgroups exist, most (if not all) of them being considered subspecies of the larger Cybertronian race. Known Decepticon subgroups include:
 * The Seekers, Decepticons who transform into fighter jets.
 * The Insecticons, Decepticons who transform into robotic insects.
 * The Constructicons, Decepticons who transform into construction vehicles.
 * The Stunticons, Decepticons who transform into sports cars and other ground vehicles.
 * The Combaticons, Decepticons who transform into military vehicles.
 * The Terrorcons, Decepticons who transform into monstrous robotic reptiles.
 * The Predacons, Decepticons who transform into savage robotic animals.
 * The Guncons, Decepticons who transform into guns.
 * The Photons, multi-component Decepticons who transform from three separate robots into individual cameras.
 * The Duocons, multi-component Decepticons who transform from individual robots into two separate vehicles.
 * The Pretender Monsters, Decepticon Pretenders who transform into robotic monsters.
 * The Seacons, Decepticons who transform into robotic aquatic creatures.
 * The Firecons, Decepticons who transform into robotic gryphons.
 * The Horrorcons, Decepticon Triple Changers who transform into both robotic creatures and jets.
 * The Snaketicons, serpent-like Decepticons who transform into metro trains.
 * The Corvicons, Decepticons who transform into giant robotic crows.
 * The Skunkticons, skunk-like Decepticons who transform into javelin-type SUVs.
 * The Lobstercons, lobster-like Decepticons who transform into sports cars.
 * The Orangucons, orangutan-like Decepticons who transform into tracked research vehicles.
 * The Torpedos, Decepticon-aligned Mini-Cons who transform into torpedo-like objects.

In the Viron cluster, the Decepticons are classified as a subgroup of Predacons with vehicular alternate modes.