Here's what you've learned.
(Doton: Doroku Gaeshi) - Earth Style: Terra Shield
Rank: C
Type: Defence
Range: Short
Chakra Cost: 15
Damage Points: N/A
Description: After striking the ground with their hands, the user creates a large wall of earth in front of him/her. The defence is not perfect though, since a hard or drilling impact can puncture the wall. Also, since this technique only guards frontal attacks, the enemy can easily attack from the side or even from above.
Now try this out.
(Doton: Retsudotensho) - Earth Style: Split Earth Turn Around Palm
Rank: C
Type: Offense
Range: Short/Long
Chakra Cost: 15
Damage Points: 30
Description: This technique causes the ground surrounding the enemy to spiral inwards on itself, burying them alive or crushing them. This technique is much more damaging if used in rocky mountainous areas, or inside a cave.