To start off, Sasori held his Candy sword with his left hand at the hilt of the weapon, and his right hand placed slightly above it. Being face to face with the dummy, Sasori prepared himself to strike. He shifted the position of his sword so that it would be in a vertical position. With a swift and quick movement Sasori sent the sword up from the dummy's waist, his next movement would be to send his sword in a downward slash from where he left his sword. He would continue to do this simultaneously, until it left a deep scar within dummy's body. Sasori then went on to another phase of his attack where he started his attack at the top of the dummy's head, and slashed downwards at the puppet, in combination with that he would send his attack upwards at the puppet. Sasori continued to perform this attack for one hundred times, until two scars layered the dummy's body from two directions.
Next, Sasori began to hold his sword in a horizontal position readying himself to strike the dummy. He started his blade at its left waist which would be the Sasori's right. He began slashing from right to left simultaneously until the sword's sharp edge lacerated the dummy's body leaving deep cuts in its structure. Once Sasori was done with this type of attack Sasori then placed his sword's point at the right waist of the dummy which would be his left, and began to slash at the puppet almost to the point it was going to fall apart. He continued this regime until, two scars were placed across the puppet's waist coming from two different directions. The slashes on the puppets waist would form an "X" shape due to other slashes made previously.
Now, again Sasori shifted the handling of his weapon into a more diagonal position. (For this next part I wasn't sure if you wanted me to strike from the Puppet's left shoulder or mine.) Sasori started his blade at the tip of the dummy's left shoulder should which would be his right. He mapped out in his head just how he wanted to attack, and imagined how it would look if he actually attacked. On to the attacking phase, Sasori swung his sword with precise aiming from the puppet's left shoulder to its right hip side gashing at the puppets body. This method of attacking continued for One-Hundred times until Sasori's blade had slit the puppet from left shoulder to right hip.
To finish off, Sasori shifted his blade into a straight forward position where the tip of the blade would be aimed at the center of the puppet's waist. After he mapped out how his attack would work out, he thrust his sword into the puppet's stomach. As soon as the sword punctured the dummy's body Sasori quickly took out the sword and began to stab the puppet again for One-hundred times. He continued his attack simultaneously until a large marking could be seen in the middle of the puppet's body. Now that Sasori was finished with the dummy, it just looked a rag doll with several gashes on its body.