This article is about a/an Undead in Kamen Rider Blade.

The Jellyfish Undead (ジェリーフィッシュアンデッド Jerīfisshu Andeddo) is an Undead who can turn into water. This Undead attacked people and electrocute them before Leangle uses Chalice's deck to execute his own Spinning Dance to seal him.

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