Nebula

A brutal space pirate and mercenary, Nebula seized control of Sanctuary II, a massive spaceship previously under the command of Thanos. Thanos was believed to be dead at this point, and Nebula claimed that he had been her grandfather. Nebula's band of mercenaries and pirates consisted of Skunge, Kehl, Gunthar, and Levan.

Nebula asked the second Captain Marvel to join her mercenary band and aid them in conquering the Skrull Empire. However, Firelord learned that Nebula had massacred the Xandarians. Nebula used her space fleet to attack the Skrull space armada and the Avengers.

Nebula then schemed to gain absolute power using Earth scientist Dr. Harker's atomic compressor to release vast amounts of energy that were absorbed by the Infinity Union (Although this attempt nearly triggered the end of the universe when the experiment caused a second Big Bang that came close to annihilating everything before a small group of Avengers - Captain America, Thor, Spider-Man and Sersi - were able to escape the destruction and shut down the equipment in time to negate the unmaking of existence). She fought the Avengers, and absorbed energies from the Infinity Union through the implant in her brain. As she fought the Avengers, she lost her powers when Sersi removed the brain implant. Nebula then escaped.