X-Factor is an American superhero comic book written by Leah Williams and published by Marvel Comics. The title was launched in July 2020 as part of Dawn of X, a relaunch of Marvel's X-Men related titles.
The series focuses on the titular X-Factor team—led by Northstar, and consisting of Polaris, Rachel Summers, Prodigy, Daken, and Eye-Boy—as they investigate into the disappearances of mutants and confirm whether they are dead or not so they can be resurrected.
X-Factor received positive reviews from critics, however, the book was cancelled with #10.
Plot
Upon feeling the death of his twin sister, Northstar flies to the mutant island Krakoa and demands she be resurrected. Lacking proof of death and not wanting a duplicate of a mutant existing alongside the original, the Five ask Northstar to prove Aurora's death. To do this, Northstar forms a new X-Factor team alongside Polaris' help, being also aided by Rachel Summers, Daken, David Alleyne, and Eye-Boy. Finding Aurora's body and proof of death, albeit under mysterious circumstances, the Five resurrects her. Following her revival, X-Factor and the Five agree to work with each other, as the latter is overburdened with requests to resurrect mutants.