Kratos the Dragonoid is the third and last of the three Proto-Chaos Beasts, who serves as the last part of the players' MQ Lesson. Its defeat, along with that of Carnax and Fluffy the Dracolich, serves to awaken the ninth Chaos Beast, Kathool.
- The Dragonoid's full name is the Crystal Dragonoid.
- It first appeared in MechQuest.
- The Dragonoid's real name is Kratos, which was revealed in MechQuest but is not given to it in AdventureQuest Worlds.
- The Kratos of the original MechQuest is a hero and not a villain.