Sarah

One of the Altair's Wizards under Isola's command. She is partnered with Toga Vital and also appears in Zegapain XOR. Sarah was in love with Toga before he lost his memory. Though a competent Wizard, she is referred to by some as the "god of death" because her Gunner tends to die in battle while she survives. She appears in episode 21 and 22 of the anime.

(Source: Wikipedia)