Card Appearances:Cocoon of Evolution

"Cocoon of Evolution":

Yu-Gi-Oh!

This card was first used in Yugi and Weevil's duel at Duelist Kingdom. It was equipped to "Larvae Moth", so that way Weevil could summon out his ultimate monster. Although Yugi was able to destroy "Larvae Moth" with "Gaia the Fierce Knight" a turn early, Weevil was able to summon "Great Moth" in place of "Larvae Moth". It was mentioned during the Uncut edition of Yu-Gi-Oh!, as well as the original Japanese-language edition, that with "Cocoon of Evolution" on the field, Weevil was unable to play any additional cards until Cocoon had evolved.

Three "Cocoons of Evolution" were seen in the Legendary Heroes Arc. After Yugi activated "Mirror Force" to protect the group from attacking insects, it created a bunch of explosions that created a fire that disturbed the Cocoons. The Cocoons then hatched into "Great Moths", but Yugi was able to destroy them with "Catapult Turtle" who launched a "Kuriboh" swarm at the "Great Moths", destroying them.

This card appeared again in Weevil and Joey's duel. Weevil equipped this card to "Larvae Moth", so that way Weevil could summon his ultimate monster. He was able to stall enough time using a combination of "Reckless Parasite", "Parasite Paracide" and "Insect Barrier". Five turns after equipping this card onto "Larvae Moth", Weevil sent "Larvae Moth" to the Graveyard to summon out "Perfectly Ultimate Great Moth".

In episode 63, this card appeared on the screen of the laptop that Kenta was using when he was trying to let Serenity Wheeler know how the Duel between Joey and Weevil was going.

Instead of Cocoon of Evolution being equipped to Petit Moth, the Petit Moth would be sent to the graveyard as Cocoon of Evolution would be Special Summoned in its place (The Cocoon can still be sent to the graveyard to special summon Great Moth or Perfectly Ultimate Great Moth using their effects).