This technique causes a cave-in by destroying the equilibrium that holds the cave together. Just removing a single vital stone throws off the balance of the cave, making it unexpectedly fragile and causing a domino effect that destroys the entire cave. The shinobi from Iwagakure use this technique in their pride tactic, luring several enemies into a cave to kill them all at once.
References
- ↑ Second Databook, page 258