Sage (Teresia Karisik)

Teresia Karisik,[1] the woman simply known as Sage, is a mutant whose brain functions operate similarly to a computer, granting her perfect memory and rapid analytical abilities.[7] A survivor from a village torn by war, she found the telepath Charles Xavier by chance in the Hindu Kush mountain range right after he had his legs crushed by an attack.[8] Xavier mentored her in the use of her abilities to shape her into a spy, forging the identity of "Tessa" and ordering her to infiltrate the nefarious Hellfire Club as Sebastian Shaw's secretary and counselor.[9] For years, "Tessa" worked as Shaw's loyal right hand.[10] Having become a target for the mutant predator Elias Bogan, she was rescued by one of Xavier's students, the X-Man Storm[11] and offered her services to the X-Men.[12] Still holding grudge against Xavier for having submitted her to a depreciative mission, she joined Storm's splinter group, the X-Treme X-Men, as Sage.[13] She ultimately left the X-Men to stage a coup and seize influence over the Hellfire Club,[14] which occasionally led her to join the British group known as Excalibur[15] and then the multiversal Exiles.[16] After returning home,[17] Sage has been involved in functionalities of the mutant nation of Krakoa, being in charge of monitoring the transit of citizens through gateways.[18] As such, she operated as an intelligence agent for X-Force and was deeply entrenched in matters regarding national security.[19] Following the fall of Krakoa, Sage has been recruited by the mutant inventor Forge as a valuable asset of his own version of X-Force.[20]