User blog comment:Jens Ingels/Quick Q&A/@comment-5725175-20121212025855

A) You mean that an specific dragon is the basic element dragon? There's is no best combination to result into an specific dragon. Because as you said dragoncity is randomly based, so there's is no 100% guaranty that you get an specific dragon upon breeding two element dragon.  Thus specific dragon can be bought at the store.

A2) You can get an specific hybrid dragon upon breeding two specific dragon(basic element    dragon).

A3) As I said breeding two specific dragon(basic element dragon) will result to a hybrid dragon whether if its uncommon or specific.

B) You can get rare hybrids by breeding two hybrid dragon.

Note: You can visit the pages above for more breeding guide combinations but there's no possibility that you can get what other players got because dragoncity is randomly based.