Quote Originally Posted by TwisT View Post
Well the whole copy thingy has also been explained as not being able to copy Bloodline Limits, such as Haku's, because they use 2 combined elements. If the copy ability could just bypass elemental affinity then Bloodlines such as Ice and Tree/Life would not be a problem to copy.

BTW what elements have we seen Kakashi use? Lightning and Water, but i can't really remember anything else. The hiding in the earth could easily be explained as a regular jutsu not requiring a element. I can't really remember anything else except that. But then again i have the memory of a goldfish so please enlighten me.
The technique where he rooted Kakashi and the one where he attacks pain from underground, if i recall correctly he called them Douton something, i *think* he used Fire ball against Naruto and Sakura, also, he uses all 5 elements in the Ultimate Ninja series, apparentelly, the abilities used there are Canon.

Quick quote from Narutowiki.

Individually, he is able to perform earth-based techniques with great detail in their shape, and is able to perform water-based techniques without an existing water source nearby. He has also been shown (in the anime) using fire-based techniques, and he is otherwise at least knowledgeable enough with Wind Release to help train Naruto in its use.