The truth sets us free u.u
Quite simple and straightforward, allowing the user to turn the ground into sand through which the user would slip through into the ground, hiding there and being able to sense others on the ground. The user can also mask where he enters/leaves. However, the technique doesnt allow the user to use hand seals or anything besides C rank and below earth.
One of the good techniques, it allows the user to raise spikes, pretty clear and concise. However, since it can be used through other earth techniques it becomes more versatile and useful.
Also a nice technique, the tremor can be used to counteract speed based opponents as long as I can track them.