Ok.
Konohamaru gathers chakra into the center of his body then he uses Nature Transformation to change his raw chakra into wind chakra , once he completely transformed it into chakra.
Then he raises his hands like this
...(".")
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...._/\_ then he releases the wind chakra through his chakra points on his palm around himself
*a swirling current of wind apears then the light sand and dust from the ground and creates a dust screen around him
Opinion: Ok so my opinion is that this jutsu can help in battles alot, any rank of water jutsu will be able to stop it, and a wind release too. But if we use it with a combo shadow clone jutsu it will be very effective (explained below

)
How would I use it in battle: Ok so I can use it like creating a smoke screen and then start digging the ground underneath me , and hide ir just hit a the opponent like Naruto did in the chunnin exam while fighting with Neji.
Or
When I create a smoke screen and then use shadow clone jutsu then use magic cloak of invisibility and sneak behind my enemy and finish him off.
Terrain: Everything depends upon it , coz if there is no dust particles and sand on it , the jutsu wont work.