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Official Site: Marvel

Layla Rose Miller, also known as Butterfly, is a fictional character in the Marvel Comics universe. She first appeared in House of M #4, and was created by Brian Michael Bendis and Oliver Coipel. Peter David has developed the character, placing Layla at the center of the ensemble of mutant private detectives in his title X-Factor.

Layla Miller is first seen as a young mutant girl who lives in Hell’s Kitchen. When she wakes up one morning, she finds everything has changed and is one of a small number of unaffected characters. Layla was instrumental in bringing down the "House of M" by using her ability to restore the memories of superheroes who rebelled and helped restore reality. Dr. Strange suggested that the Scarlet Witch had created Layla as a fail safe to help the heroes in case something went wrong.

Contradicting Doctor Strange's theory of her origin, Layla's life prior to the events of House of M has been described: she was a young mutant living in an orphanage where she was picked on by the other orphans. However, Layla was shown to have fabricated a large portion of her experiences at the orphanage in order to facilitate her entry into X-Factor Investigations . The extent of what really occurred is unknown. When asked, Layla has purported to understand how it is that she "knows stuff." However, she claims that if she were to tell anyone, she would be struck down and die on the spot. Since she has proven to be capable of manipulation, the veracity of her contention is in doubt.

After Layla joins X-Factor Investigations, she helps the other team members in various, indirect ways. When an operative of Singularity Investigations tries to murder Rictor, Layla electrocutes him. She then sends his body back to Singularity Investigations with a note that says "stay out of Mutant Town." After being taken back to an abusive orphanage, Jamie makes an arrangement that allows her to return at X-Factor where she would be safe. When Cyclops arrives to inform Siryn that her father, Banshee, has died, he pretends not to recognize Layla.

Butterfly has not been a contender in any CBUB matches.