C0

The highest form of the infamous Explosive Clay, C0 is a suicide-bomb technique used as a last resort. The user reveals a mouth on their chest, which is stitched up. After undoing the stitches, the user feeds it a large ball of clay. The mouth on the chest has a direct connection to the user's heart, so a large amount of chakra is built up. It then kneads chakra directly from the meridians of the heart and keeps doing it without interruption until the moment of the explosion. The users explosive chakra then manifests itself in their veins, flowing through their body. These "veins" then condense into a sphere that slowly cracks open and detonates, producing a unique explosion that covers a ten kilometer blast radius.

[[WARNING: This technique will result in the permanent and irreversible death of the character that uses it]]