Board Thread:Dragon City Gameplay Questions & Answers/@comment-10799351-20130812142353/@comment-14284922-20130812161926

Well, if you were to complete the new Viking Event, you would get both light and war hybrids. (Thor and Loki are War, Odin is Light and War).

This would prevent you from having to buy light and war dragons and save you money. There is no way to get the habitats without saving up gold unfortunately.

Another option is if you had a legend dragon you could breed it with an elemental (like Terra) repeatably and hope for a Light/War hybrid. Once you have a hybrid you can breed that for other Light/War Hybrid and repeat the cycle.