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The Crystal Release is an offensive Crystalian Sorcery in Elden Ring, dropped by the Crystalian bosses in North Liurnia's Academy Crystal Cave.
The Crystal Release is obtained by defeating the twin Crystalian bosses at the end of the Academy Crystal Cave, located under the Academy of Raya Lucaria in North Liurnia. It can be found at the base of the academy on its west side, sealed by an imp statue.
This powerful magical attack scours area with violent rain of crystal shards.