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Rainbow Shell is a Key Item in Chrono Trigger and Chrono Cross. In both games, powerful weapons and items can be crafted from it.

Chrono Trigger[]

Rainbow Shell Sprite

The Rainbow Shell is a very colorful very large shell that can be forged into many useful and durable items. It can be found in Giant's Claw in Middle Ages after the defeat of the Rust Tyranno. Due to its size and weight, however, it cannot actually be lifted by the party (not even Robo is able to lift it), and is thus never actually added to the inventory. It is, however, carried back to Guardia Castle by the King's knights as a form of repayment for all the party has done to assist them (namely, rescuing Queen Leene and helping thwart the Mystic incursion at Zenan Bridge).

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The Rainbow Shell in Giant's Claw

The Rainbow Shell is seemingly the fossil of an ancient, huge sea creature, compressed and refined by the unreal powers of Lavos's crashing into the planet. The result of this refinement is an incredibly strong and powerful mineral, imbued with elemental abilities and the subject of much myth and legend. It was apparently in the possession of the Reptites, whose Tyranno Lair was crushed by Lavos; the shell subsequently was reduced to a place of residence far below the planet's crust. It may have been visited by citizens of Zeal, or legends of it were passed through generations by the Iokans or Larubans; regardless, accounts of its power and beauty appear in Zeal's tomes, and even filter into the treasure hunting cliques of Middle Ages, evident in Toma Levine's own desire to hunt the shell and the Dorino Elder's interest in it. Toma eventually located it in the Giant's Claw, which is the Tyranno Lair's second incarnation as an island that briefly appears in the Middle Ages. He was unable to procure the shell from its resting place, but in the Keystone Timelines, he informed Crono and the heroes of time of its location, after they poured a bottle of booze on his grave. It was subsequently recovered by knights of the Kingdom of Guardia, where it lay in its treasury for four hundred years, planned to be unveiled at the Moonlight Parade.

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Rainbow Shell in the Vault.

The acquisition of the Rainbow Shell had a temporarily negative effect on the royal family, as Yakra XIII was able to forge documents detailing a transaction that supposedly entailed King Guardia XXXIII's selling the heirloom to a trader. The plot was foiled when a piece of the Rainbow Shell was taken from its resting place in the treasury, which was overrun by Yakra's henchmen. Marle finds a letter attached to the Rainbow Shell in the Present from Queen Leene, saying that family is permanent. The contents implied that at some point in her life she figured out that Marle was her descendant. She then removes a shard of the shell and brings it to the King's Trial.

This Prism Shard proved the King's innocence. Soon after, Melchior, probably the only person capable of doing so, assisted the party in creating new weapons and items for the party from the shell, including the Rainbow, Prism Dress, and Prism Helm. The Rainbow Shell's fate afterward is unknown, perhaps falling victim to the Fall of Guardia and being stolen by Porre.

Chrono Cross[]

The Rainbow Shell appears in Chrono Cross in the form of several fragments, suggesting that in the previous years, the Rainbow Shell was indeed stolen from the Kingdom of Guardia and disseminated across the world, eventually arriving in El Nido. These Rainbow fragments are the highest weapons and armor grade material available, affording items of legendary quality. However, use is limited and probably confined to Serge's party, like the forging of such items requires the work of Zappa as well as the integration of shiny items imbued with elemental power and resulting from the use of Summons.

Trivia[]

  • The shell is probably based off pieces of Ammonite, fossils of ancient sea creatures whose appearance is similar to that of a Nautiluses. These fossils are sometimes iridescent.

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Chrono Trigger Items
Consumables Potion · Mid-Potion · Hi-Potion · Ether · Mid-Ether · Hi-Ether · Turbo Ether · Elixir · Megalixir · Panacea · Athenian Water · Shelter · Ambrosia · Lapis · Barrier Sphere · Shield Sphere · Strength Capsule · Magic Capsule · Speed Capsule
Key Items Petal · Fang · Horn · Feather · Seed · Jetbike Key · Pendant · Gate Key · Rainbow Shard · Chrono Trigger (Item) · Carpenter's Tools · Spiced Jerky · Dreamstone · Race Recorder · Moon Stone · Sun Stone · Ruby Knife · Yakra's Key · Doppel Doll · Toma's Spirits · Golden Sand · Golden Hammer · Prismastone · Saintstone · Reptmark · Waystone · Godwood · Steel Ingot · Sturdy Vines · Hearty Lunch · Rusted Blade · Lumicite Shard
Arena Items Slops · Flameclaw · Seafang · Duskeye · Luxwing · Hawk Talon · Shield Cloak · Feral Wrath · Smoked Meat · Dried Mushroom · Sweet Banana · Millennia Fruit · Songbird Egg
Other List of items
Chrono Cross Items
Consumables Tablet · Ointment · Medicine · Antidote · Brace · Capsule · BlackOut · Nostrum · WhiteOut · Panacea
Materials Bone · Copper · Iron · Mythril · Denadorite · Rainbow Shell · Eyeball · Humour · Feather · Scale · Fur · Leather · Fang · Carapace · Screw · Seed · Shiny Ember · Shiny Dew · Shiny Leaf · Shiny Sand · Shiny Salt · Shiny Soot
Key Items Ancient Fruit · Angry Scapula · Aroma Pouch · Astral Amulet · Beeba Flute · Bellflower · Big Egg · Black Relic · Blue Relic · Book of Poems · Card Key · Chrono Cross · Decor Shield · Dragon Emblem · Dragon Tear · Einlanzer · Explosive · Fiddler Crab · Garai Keepsake · Good Backbone · Green Relic · Green Tinkler · Handle · Heavy Skull · Heckran Bone · Hero's Medal · Hydra Humour · Ice Breath · Ice Gun · Komodo Scale · Life Sparkle · Manor Key · Medical Book · Memento Pendant · Mixed Bones · Mushroom · Parlor Key · Pelvic Bone · Prison Key · Prop Sword · Red Relic · Relief Charm · Safety Gear · Sapphire Brooch · Shark Tooth · Smith Spirit · Star Fragment · Station Pass · Sturdy Ribs · Tear of Hate · Tear of Love · Tele-Porter · Time Egg · Time Shifter · White Relic · Yellow Relic
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