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Ho-Oh's sacred feather — extracted by the Masked Man to forge the GS Ball, hidden by Green on Yellow's hat until the final hour.
The Rainbow Wing is Ho-Oh's signature feather, extracted by the Masked Man after capturing the legendary bird. Combined with the Silver Wing, it forms the essential material for the GS Ball. Green hid the Rainbow Wing (along with the Silver Wing) in Yellow's straw hat, where it remained concealed until the climax. When Pryce escaped into the time stream, Yellow surrendered her hat and its hidden feathers so Gold, Silver, and Crystal could follow.
A single feather that shimmers with every color of the rainbow, shifting hues as light catches it. Warm to the touch. Radiates the same purifying energy as Ho-Oh itself. Small enough to hide in a hat brim — Green did exactly that.
Also known as: Rainbow Wing, Rainbow Feather