Sarina Sarina , known as Mizuchi Saiou ( 斎王美寿知 , Saiō Mizuchi ) in the Japanese version , is Sartorius ' younger sister , who is a . Design . Appearance . Sarina ' s character designs were overseen by Kenichi Hara . Sarina wears the ceremonial red and white clothes of a miko with sandals . Her dark hair is elaborately arranged in a flowing ponytail behind her , with the bangs closest to her face positioned on the outermost edges of her head ; she also wears round earrings . She carries an Academy - issued Duel Disk on her left hand . Abilities . Sarina wields supernatural powers like predicting the future , just like her brother . She can materialize Duel Monsters , bestow special abilities onto others , teleport herself and others , trap people in her mirrors , create a spiritual barrier around a whole city , and even duplicate herself . Biography . Sarina is the sister of Sartorius , and the leader of the Light Brigade . She first sent the first two members of her brigade ( Frost and Thunder ) after Syrus and Hassleberry ; in the end , Frost defeated both his partner and his opponents ( using a card Sarina gave both he and Thunder that Thunder couldn ' t use ) . When Frost returned , he was intending to duel Jaden himself ; but Sarina , unimpressed with Frost ' s close - call victory , sealed him and Thunder in a mirror . She then sent T - Bone and Blaze to find and defeat Jaden ; but she sealed Blaze away when they found him , and despite infusing Frost ' s , Thunder ' s and Blaze ' s powers into T - Bone ' s Deck , T - Bone lost and was sealed away . After disposing of her subordinates , she challenged Aster and Jaden to a Tag Duel in KaibaLand ' s virtual system but was ultimately defeated . Sarina then revealed that she wished to save her brother from the influence of an evil aura housed in a Destiny Hero card that was shown to him when they were younger . In a final act of gratitude she helped those trapped within the virtual world to escape but was left behind in the collapsing program , digitizing herself to act as her brother ' s " guardian " . While no mention of it is made in the English adaptation , the Japanese version further includes a promise by Solomon Muto to speak with Seto Kaiba in the hopes of restoring her consciousness . Sarina returns near the end of the second year to contribute to the satellite ' s demise . Afterward she is flown in to Duel Academy via helicopter by Kaiba ' s associates and reunited with her brother . She is captured by Nightshroud under unknown circumstances in order to force Sartorius to accept the power of darkness . He corners and duels Jaden in order to save his sister but she appears to Jaden and urges him to defeat her brother . Jaden does so , overcoming Sartorius ' card " Arcana Force 0 - The Fool " that he placed in Jaden ' s Deck and he is reunited with his sister in the World of Darkness . They are both revived when Jaden defeats Nightshroud . After that , she was present at Jaden ' s graduation ceremony . Non - canon appearances . In " Yu - Gi - Oh ! GX Tag Force 2 " , Sarina appears in several Society of Light - themed storylines . She is erroneously referred to as " Sartorius " due to a translation error . Deck . Sarina plays a Mirror Deck . Each of her Silver Spirit 「 式神 , " Shikigami " 」 monster s , based off spirits called , is paired with another and she uses their effect s to constantly revive them from the Graveyard to either activate " Mirror Bind " , or to activate " Full Moon Mirror " . Once 10 counters have been placed on " Full Moon Mirror " , she is able to activate " Infinite Fiend Mirror " to summon 9 Dark Creator Token s " of her powerful " Dark Creator " to the field . The concept of Sarina ' s cards is derived from and she herself takes on the role of an onmyōji during episodes in which she makes appearances .