Exploding Insect

The user blinds the enemy with a smokescreen to scatter larvae that if inhaled, will grow inside their bodies into a spider-like parasite that explode, killing their host. The insect's growth depends on how much chakra the host is using and a massive amount of chakra can speed up the growth process. The insect can however be removed by the means of surgery, though it is difficult, as one mistake could cause the insect to explode.