User blog comment:MemoryAngel/How are Creation, Destruction and Darkness confirmed?/@comment-25374175-20151014020939

All the elements that you have listed do exist, and there is proof corresponding to each element.

Creation was stated to be a full-fledged element when Wu explained how Ninjago was constructed. As far as I can remember, the old man answered that the First Spinjitzu Master used this element to create the land. And, since Lloyd is stated to have all the abilities his grandfather had, I can safely assure that Lloyd has Creation too.

Destruction is a different case, however. Though it is true they have never said Destruction itself, it is heavily implied. Also (this is the main source), on the official LEGO site, it said Garmadon holds the power of Destruction in his blood. As we judge speculation, we editors think that the Dark Energy Garmadon uses is Destruction.

Darkness is an element wielded by the Overlord. I do not have to explain this throughly since the Dark Lord himself has already used it multiple times on the cartoon.

Well I hope that has helped you with your problems. If not, reply back and I will attempt this again.