Butterfly (Survival of the Fittest) was a warrior [[Vrill]. He was hatched by the Doctor by the TARDIS key. He was named by after then patterns on his wings.(BFA: Survival of the Fittest)
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Butterfly (Survival of the Fittest) was a warrior [[Vrill]. He was hatched by the Doctor by the TARDIS key. He was named by after then patterns on his wings.(BFA: Survival of the Fittest)