Name: Shinsō 神鎗Requirements: Spirit of The Sword Stage One/Isai
Description: Shinsō (神鎗, God Spear; Viz "Sacred Spear"): It looks like an ordinary wakizashi. The hilt is light-blue with a tsuba made of two slim swirls of metal looping around the blade to make an open oval, resembling an "S".
This blade has an amazing cutting power, able to slice through solid rock.
Name: True Shinsō 神鎗Requirements: Spirit of The Sword Stage Two/Isai
Description: Shinsō (神鎗, God Spear; Viz "Sacred Spear"): It looks like an ordinary wakizashi. The hilt is light-blue with a tsuba made of two slim swirls of metal looping around the blade to make an open oval, resembling an "S".
The Ability is triggered by the phrase "Shoot to kill" (射殺せ, Ikorose).
Shinsō's blade glows white and extends at high speed to impale Isai's opponents from a distance. The blade also carries tremendous force when extending. In addition, Isai can maintain the extension and swing the activated Shinsō in wide arcs, attacking multiple targets quickly and simultaneously. Shinsō is capable of reaching a maximum length equivalent to one hundred times its original length, earning it the nickname Hyapponzashi (百本差し, Hundred-span)
Name: Kamishini no Yari 神殺鎗Requirements: Spirit of The Sword Stage Three/Isai
Description: Kamishini no Yari (神殺鎗, God-Killing Spear). Isai's blade does not change in appearance at all, retaining its small wakizashi form. However, as Kamishini no Yari, the blade is capable of reaching lengths equivalent to 1 kilometers at amazingly intense speeds. The blade can also retract to its normal size at the same rate.
Name: Kill
Requirements: Spirit of The Sword Stage Three
Description: Kamishini no Yari's true ability as well as its deadliest aspect is not based on its length or speed but rather its ability to turn into dust for just a second when it expands out and contracts. There is a deadly poison inside the blade that dissolves and breaks down cells. He can leave a sliver of his blade in an opponent when he retracts Kamishini no Yari allowing him to try and kill an opponent at any time when he chooses to utter the release command "Kill, Kamishini no Yari" for the technique while placing his hand up to the target. The result causes the target to completely break down and dissolve at the cellular level from the inside out. This process takes 5 posts and can be stopped by basic medical Ninjutsu. The effect does not hinder the opponent until the 5th turn, in which they cease to be.
Using this ability costs 80% of Isai's maximum Chakra.