Describe how todoit:The user will touch any earth based structures and using their chakra they will analyze the Physical property of the Surface. And then turn any part of their body into the object
How many hand seals does it have:that is the best of the advantage it requires no handseals
Advantages:If the user has a stone rock near them, and if the opponent tries to attack them with a taijutsu move. The user can make use of this technique and manipulate their body to turn into a hard stone rock and this damages the opponents leg...this jutsu requires no handseals and it is an easy jutsu to counter swamp of the underworld
Disadvantages:If the user transforms into fine sands in order to counter the opponents technique, the opponent can very well use a powerful water stream technique to wash away or blow them away with a powerful gust of wind or if the if the user turns into a stone, the opponent will use a normal lightning technique to easily break off the stone.
Combosandpossible uses: this jutsu is a defensive/escaping jutsu so it can be used in conjuction with almost all jutsu
How to defend against it:there is no actual counter needed for this technique. though the user can use proper elemental earth weakness to over power the opponent.
Image of the technique: