Re:
Custom Jutsu Submission 
(Ensan no Kouu) - Acid Rain
Rank: S
Type: Supplementary/Attack
Range: Short-Mid
Chakra cost: 40(-5 per turn to keep active)
Damage Points: -10 each turn or as long as the user has this jutsu in effect
Description: A powerful ninjutsu that laces the clouds with a large amount of poison elemental chakra to change the structure of the rain. The end result is a storm that does not rain water, but instead rains a powerful acid that can eat through most materials. Unfortunately, skin is not one of those materials. Instead of instantly eating through, it causes skin to instantly blister and slowly dissolve in a most painful way.


sorry but we already have that =/(San Ame no Jutsu) Acid Rain Technique
Rank: A
Type: Attack
Range: Short - Long
Chakra cost: 30
Damage Points: 60
Description: The user changes the compounds of rain droplets into acid that can corrode metal or burn flesh.
? Can only be used twice per battle
(Ensan no Kouu) - Acid Rain
Rank: S
Type: Supplementary/Attack
Range: Short-Mid
Chakra cost: 40(-5 per turn to keep active)
Damage Points: -10 each turn or as long as the user has this jutsu in effect
Description: A powerful ninjutsu that laces the clouds with a large amount of poison elemental chakra to change the structure of the rain. The end result is a storm that does not rain water, but instead rains a powerful acid that can eat through most materials. Unfortunately, skin is not one of those materials. Instead of instantly eating through, it causes skin to instantly blister and slowly dissolve in a most painful way.