Cassandra Nova Xavier was an Omega-level mutant and the twin sister of Charles Xavier. Being banished to the Void by the Time Variance Authority, Nova took a liking to it and gained permission to run her operations there as she pleased, building an armed community of survivors. Nova came into conflict with freshly pruned Deadpool and Wolverine who were trying to get home, while Nova had no intention to let them out. When the Resistance successfully disrupted her operations, Nova was betrayed and almost killed by Pyro but Deadpool and Wolverine helped her survive, so she got them out of the Void. Realizing that the TVA and Paradox broke their agreement, Nova followed them out of the Void, intending to use the Time Ripper and eradicate all the realities in the multiverse besides the Void. Her plan failed, and Nova was atomized by the energy of the Time Ripper when Deadpool and Wolverine overloaded it.