Esa-Vell

{| style="border:3px #353535 solid; border-radius:1px; border-radius: 10px 10px 10px 10px; padding:0.5em;" ""You're not going anywhere. Genis and Phyla asked me to come here and keep an eye on you while he's gone. He's traveled to the future to save you, and meanwhile wants to make certain you don't die now.""

- Esa-Vell.

Early Years After Genis-Vell, then known as Captain Marvel, previously destroyed and recreated the universe, the "new" version was subtly altered with Phyla, and Esa-Vell's existence being one of the changes. Phyla and Esa-Vell were the "second" artificially created twin offsprings of Captain Mar-Vell who was created by their mother Elysius in the "new" universe because their first attempt (Genis-Vell) had been so successful.

When they both grew of age, Esa-Vell ended up separating herself from her family and decided to relocate to Earth. On Earth, she ended up moving to New York City and became a certified life coach.

Skrull Invasion During the Secret Invasion, the Atlantean Namora killed a Super Skrull and was captured by other Skrulls which Esa witnessed herself. She immediately ran to her room and pulled out a wooden box which carried the Quantum-Bands and used its powers to assist Namora and rescue her from the skulls, and with that, they were soon met by Namora's teammates Marvel Boy, M-11 and Gorilla Man. Dissecting the hostage, Marvel Boy learns the secrets of the Skrull invasion just as their location is discovered. The team along with Esa defended the ship and Jimmy asks Venus to use her powers to kill the attackers. Venus, however, doesn't want to use her powers to kill and Martian Boy reveals that the Skrulls are not malevolent and just want to join the human and skrull race together. Jimmy, however, is still determined to defend the human race and gets M-11 to wipe out all the attacking Skrulls.

Dark Avengers At the end of the Skrull invasion, Esa departed from Namora and her allies and reformed supervillain Norman Osborn became a national hero and the head of the superhuman community. While recruiting a new team of Avengers, Osborn came to Esa and convinced her to join his team under the alias of Captain Marvel. After their first mission in taking on Morgan le Fay, fellow kree Noh-Varr slept with teammate Karla Sofen, aka Moonstone. However, she was shocked when she learned from him that most of these Avengers were composed of criminals pretending to be heroes. She then abandoned the team.

After leaving Osborn's employ, she was attacked by the Sentry but escaped. Esa-Vell fled to an abandoned building with one of many Kree communicators she had secretly built during her time on Earth, as attempted to contact the Kree Supreme Intelligence. A holographic message left by the Supreme Intelligence told Esa-Vell that the actions of the Skrulls during Secret Invasion had left Earth in more danger than ever before and that she was the planet's new Protector and During this mission, she fell in love and started dating fellow Avenger Wendell Vaughn, Quasar before getting married.

Death in the Family When Esa-Vell caught word of her sister now calling herself Martyr, Phyla-Vell became a more abrasive and aggressive figure. This grabbed Esa-Vell's and the Guardians' attention and attempted to negotiate with the Inhumans to stop the War of Kings, she ruined the attempt by taking Inhuman princess Crystal hostage instead; this led to a battle between the Inhumans and the Guardians, which she continued to escalate. Eventually, the Inhumans tried to end the war by detonating a weapon that would shatter space itself, creating a multiversal Fault.

When Adam Warlock stopped the Fault's growth by using a redundant timeline, one where he became the villainous Magus, Phyla-Vell revealed that her deal with Oblivion was to kill "the Avatar of Life" and she would know what to do when the time came. Knowing he would now become Magus, both Phyla and Esa ran Adam through but this failed to stop his transformation. Several of the Guardians, then stranded in the year 3009, were then sent back in time to stop Magus' creation and Phyla was prevented from making her move. This time when Warlock was transformed, she engaged him in combat - but Magus magically teleported her own sword from her hands and slew her with it with Esa screaming at the loss of her sister.

Actually a ploy by Magus, Phyla was revealed to be alive and in his custody on Sacrosanct where she helped release her other seemingly-deceased teammates, then ran off to confront Magus, leaving them behind. Coming to a cocoon she assumed to be Magus, the cocoon hatched before her, revealing a resurrected Thanos, who immediately slew her.

{| style="" border="1" !Weaknesses !!Description !Power Limitation !! When in possession of the Quantum Bands using up too much power in her quantum device will drain them.