Board Thread:Dragon City Wiki/@comment-24937779-20140513172744/@comment-24568135-20140514134817

Light was available through the White Knight in one of the quests, but it is one that I bought for whatever million gold it was. I did breed it out of the White Knight for my daughter. But you would have to have a dragon that had it in order to get it that way. I don't pay much attention to the Dragon Black Market so I can't be of much help there.

War element was part of Loki, Thor and Odin in that quest, as well as Shogun in the Japanese quest and you can use those to breed it out of them. At least you could before.

Pure can be part of a dragon that you get through recruitment (Blue Dragon?) or you can purchase in a special (Core Dragon)  Pure is now less than a million gold to buy it outright though. Once you get pure, breed that bad boy to get some pure hybrids and then breed the pure hybrids to try to breed a legend element dragon.

You can get Legendary in recruitment if you are at a high enough level.

sorry, my mind is drifting to the just released Dino Island quest on mobile.