Chaos Dragon is the twelfth Chaos Beasts.
The Chaos Dragon is a three-headed dragon where two of it's heads are of a lion and an eagle. The dragon statue in the Swordhaven was brought to life and awakened by Chaos King Alteon's chaos powers after Brittany was killed by Chaos King Alteon's attack. The Chaos Dragon ends up causing destruction in Swordhaven. The players head to the roof to combat the Chaos Dragon. The players slay the Chaos Dragon causing the roof to collapse.
- Location: Castle Roof
- Level: 35
- HP: 131,852
- MP: 100
NOTE: Chaos Dragon gains power during the battle. It can also petrify the players.