Yōdama (陽玉, "Yang Bomb"), also known as Yōgyoku (陽玉, "Positive Ball") is a sphere of highly condensed pressurized chakra with an extreme concentration of physical energy obtained from the environment itself. The ratio of physical energy and spiritual energy is said to be 9:1, signifying how packed with vitality the sphere is.
Overview[]
Having developed this technique during his tenor as Hokage, Ketsugo perfected and practiced the jutsu in secrecy at night. It is a self-sustained ball of energy whose core draws in and saps the life force from the world around, sucking up physical energy from plants, the air, animals and even people. The more physical energy it takes the larger it becomes, its core becoming a glowing hot white.
Tentai performing Yodama
The sphere is incredibly dense and is noted to be several times heavier than Ketsugo himself. Despite this, however, it is brimming with vitality and can move and transmit itself at astonishing speeds, clearing battlefields in but a blink. In this way it is a two-fold attack: (1.) it threatens to sap the enemy of their physical energy and (2.) should it strike a foe it would apply so much pressure and force to their body that they would inevitably be flattened from all directions. The damage is so intricate that bones are crushed and cells collapse upon themselves. The radius of the explosion threatens to even engulf the caster of the jutsu, making it that much more dangerous. One should also note the aura of energy emanating around the sphere; its dense power is enough to stop a full grown man in his tracks, threatening to push him to his knees. Some have noted that upon being near to the sphere they hear a faint heartbeat-like hum as if the energy itself were alive.
Training Regiment[]
Due to these dangers, the initial step in training with the Yang Stone is reserved for those with an exceptionally high level of physical energy and exceptional chakra control. Only individuals who possess a significant reservoir of vitality are deemed suitable for this.
1. One requires a special stone Yang Stone, also known as the Physical Recycling Stone, this is a crucial component in the rigorous training required to master the advanced technique, the Yōdama (陽玉, Yang Bomb). This stone is not just any ordinary artifact; it embodies a unique property that allows it to absorb and return physical energy from its user at a slow rate, in a manner akin to a whirlpool. To begin training for the Yōdama, a student must first become accustomed to the sensation of having their physical energy drawn into and out of the stone, and back to the original source. This process is essential for developing the necessary control and proficiency with the technique. However, the training is fraught with peril. If the process is not carefully monitored, the stone can explode, using the user's physical energy as a bomb, leading to potentially fatal consequences. This high risk demands that the stone be handled with the utmost caution and respect.
2. One must become thoroughly familiar with the sensation of physical energy being absorbed by and returned through the Yang Stone. To deepen this familiarity, it is necessary to gradually increase the weight and size of the Yang Stone. As the stone becomes larger, it absorbs physical energy at a faster rate. This means that while working with a larger stone, one must adjust to the more rapid absorption and return of energy.
3. One must learn how to use Shape Transformation to form a shape of chakra with a higher ratio of Yang energy, specifically a 9:1 ratio. In this context, this involves creating a sphere predominantly composed of Yang Chakra. Mastery of Shape Transformation is crucial for this process, as it allows the user to precisely mold the chakra into the Yodama.
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