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Crystal Encampment Wall
Anime Naruto Shippūden Episode #104
Appears in Anime
Classification Nature Icon Crystal Kekkei Genkai, Ninjutsu
Class Defensive
Hand seals Snake → Technique specific hand seal → Dog → Technique specific hand seal → Technique specific hand seal

Guren sends out a wave of chakra, which then turns into an almost impenetrable crystal wall, given the fact that it repairs itself when damaged. This crystal most likely has a similar endurance to the one created by the Crystal Release: Jade Crystal Labyrinth Technique. Only Shino's enhanced insects were capable of weakening the wall enough for Kakashi to finally destroy it using his Lightning Cutter.