One/three disadvantages:
1. The jutsu does not kill an opponent.
Nah. It would kill them due to them drowning. xD
Besides that minor slip up, well done. Moving onto the next technique!
(Suiton: Kokuun) - Water Style: Black Clouds
Rank: C
Type: Supplementary
Range: Short-Mid
Chakra cost: 15
Damage Points: N/A
Description:After performing the Ram → Snake → Tiger hand seals the user creates a flammable black mist that forms a small cloud. The user can then move the cloud above their target and disperse it, covering the target in flammable oil.
Please tell me if you do not understand this one please; by forming the required handseals, you will release a mist; this mist has a special type of water in it, it's oil, oil that is flammable. The mist will form into a cloud of about a mid-range radius, it will rain down. This flammable oil, this cloud can be controlled and follow around you target if need be. This oil will cover your target, which then allows you to use a fire technique to ignite the target into a flames, doing good damage.