What If Naruto Was The Lightning Crystal Of Konoha. 

What If Naruto was The Lightning Crystal Of Konoha.
Here is short summary.
What of instead of his nature being wind, Naruto had such a strong lighting release, and Earth release that he only could use Black Lighting and Crystal Release and could combine them both. Under the stress of learning the truth of his burden by Mizuki, and seeing one of his precious people in mortal danger, Naruto unlocks two of the most unique abilities in the Elemental Nations.