Good, good. But could use some improvement.
One HUGE disadvantage from this jutsu is the fact that you slam your hands onto the ground while performing it, which means you cannot create handseals until after the jutsu is finished. I also probably wouldn't use this as a means to sneak attack an opponent as it would happen directly in front of their eyes, instead you would do an attack before this that catches them off guard and this attack would make it more difficult to get away from the previous jutsu.
Moving on,
(Doton: Nentsuchi Otoshi) โ Earth Release: Sticky Earth Drop
Rank: B
Type: Supplementary
Range: Short โ Mid
Chakra cost: 20
Damage points: N/A
Description: The user creates an opening within the sky, which drips down onto the opponent a large amount of mud, covering them. Itโs normally followed up by Lightning release: sixteen pillar bind to create a giant oven around the opponent and then using Fire release: Firing biscuit technique to ignite the oven, hardening the mud and immobilizing the enemy target.
For this jutsu materialize an opening in the sky and from the opening use your doton chakra to create mud which pours down on top of my clone.
Once again, advantage, disadvantage, and a use for this jutsu in combat.