I guess its knives, but if you want a more well specific area hit, then i guess you can do needles and pin your opponent to something. Man these descriptions need clearing up lol
*looks at the tree*
Not bad, more damage than i expected.
(Kyuutai no Ame) - Orb of Rain
Rank:A
Type:Attack
Range:Short-Mid
Chakra cost:30
Damage Points:60
Description: After a long line of handseals, the user is able to place a large amount of chakra into their hands and gather rain towards their palms. The user must begin running towards the target of the jutsu, once enough rain has been gathered and condensed to form a fist sized orb of water in the user's hand, the user must place their hand near the target. The orb of water will "explode" pushing enemies back and creating openings for attacks.
*Starts to run towards a tree and makes a long stream of hand signs. Once near the tree i strike it with an orb of rain in my right palm.*
Practice my handsigns and as you run gather the rain into your palm and right before you strike your target release the gathered chakra within the rain orb to cause maximum damage.
give it a shot