Even though Jean Grey did the Shi'ar a big favor by eliminating the threat of Cassandra Nova, the Shi'ar still want her dead. In the
Phoenix Endsong series, a group of Shi'ar tried to permanently kill the Phoenix Force and Jean Grey. Jean, however, escaped their
suicide bomb attack and returned to the White Hot Room to restore herself. In the "End of Greys" story arc, the Shi'ar wanted to wipe out the Grey
genome and
Quentin Quire with the purpose of eliminating the possibility of a new
Omega-level mutant becoming a host for the Phoenix Force. The Shi'ar Death Commandos murdered Jean Grey's
father,
niece,
nephew, and other relatives in an
alien invasion on Earth, thus inciting the wrath of Jean's daughter
Rachel Summers, who has vowed vengeance on the entire Shi'ar Empire. Recent events seem to indicate the Shi'ar Council was responsible for this, and that Lilandra is unaware of what has been done in her name.