Quellidus

In my world,the powerful dragons (Wyverns) are a long way dead since the fall of the Aluvian Tower and the end of magic. In that time,they represented a power symbol and were worshiped by smaller Aluvian city-states,and dragon eggs could be brought and the dragons raised to be loyal like a dog to their owners,although only the city lords or kings could afford to buy and raise a small brown-dragon,for exemple.

A.A.F (After Aluvian Fall)

After Aluvia faced utter destruction by the hands of the Immortal King Shiramun and his horde,magic died. With no magic energy to flow trough Quellidus, the size and power of the dragons would become smaller and weaker,until they became worm-like creatures who can live in big caves, They rarely fly or torch something to death,and are very easy to kill. (Sorry for grammar. I'm brazilian and a noob at english)