Sallya

“Life would be dull if everyone was happy and polite. Also, don't tell anyone about this. I have an image to maintain.”
— Tharja, to Ricken

Tharja (pronounced /ˈθɑɹʒə/; Japanese: サーリャ Sallya) is a dark mage from Plegia. Uninterested in wasting her life in the conflict between her nation and neighboring Ylisse[2], she instead allies with the Shepherds. She has a preoccupation with curses, often found chanting suspicious ones to herself when alone.

(Source: Fire Emblem Wiki)