Poison Dragons are a type of composite dragon who can alter the chemical structure of things they ingest in order to create various poisons.

There are twenty poison dragons in the world.

They are, from oldest to youngest:

• Aldebaran
• Gacrux
• Diphida
• Mizar
• Sabik
• Alkaid
• Caph
• Suhail
• Deneb
• Atria
• Sargas
• Tiaki
• Rasalhague
• Spica
• Altair
• Mimosa
• Alnitak
• Nunki
• Acrab
• Arcturus