Sentinel: First invented by Bolivar Trask, the robotic Sentinels were tasked with containing and destroying mutants. Notoriously difficult to effectively program and control, the use of Sentinels almost always ends in tragedy.

Rachel Grey: After coming to terms with the loss of her mother Jean Grey, Rachel adopted the original Marvel Girl's codename and costume. Her powerful connection to the Phoenix and her psychic abilities continue to make her almost unstoppable.