Vera "Snake-Eye" Miligan

"Glare". Vera Miligan has kidnapped Katie, and refuses to return her until she's finished studying Katie's brain. Nanao is having none of that and charges -- and Miligan grins and curses her with the basilisk eye that's earned her the nickname "Snake-Eye" among the upperclassmen, which starts to turn Nanao to stone until Oliver counterspells it.

Example of:
Deadly Gaze