You can find legendary Pokemon in Pokemon battle quest in the pokeshop.
You can't but you can make one @ dragon quest monsters.com
A person can find legendary Pokemon in Pokemon Battle Quest by searching the map and battling other trainers. It is also important to have upgraded Pokeballs.
gittinghampalace
oaklore dragon defend oaklore quest
nythrea's first quest you'll find it on that one
U have to fight him in warlic's quest(dragon egg)
In Dragonfable you can find the mummy dragon in a quest called Dynasty Tomb in the Sandsea from Zhoom.
Go to below link and go to non-member quest and find dragon slayer quest. It is a good guide with screenshots.
You find them in high level 'volcano' grottoes.
Anywhere, but they are really hard to find.. Why do you think they call them 'rare' items?
you can get it from certain monsters