You'll be able to legitimately say that you can do any jutsu below B-rank after you're a little more experienced 
Now...
(Doton
oryuusou)-Earth Style:Rising Earth Spears
* Type:Attack
* Range:Short-Mid
* Chakra cost:20
* Damage Points:40
* Descripton: The user makes the earth rise up in the shape of sharp cones that can pirece any one or thing caught inside of this jutsu.
Focus your earth chakra in your feet, releasing it in a stomp, creating large spikes of rock that shoot up at a distance.
Now...
(Doton
* Type:Attack
* Range:Short-Mid
* Chakra cost:20
* Damage Points:40
* Descripton: The user makes the earth rise up in the shape of sharp cones that can pirece any one or thing caught inside of this jutsu.
Focus your earth chakra in your feet, releasing it in a stomp, creating large spikes of rock that shoot up at a distance.