FA is one of the hardest to catch ( 2nd to BL since they evade 100% atk and 100% resist immovable). Even my wiz can crit 2.5k lance on a FA, it's not easy to kill that FA if he/she intents to run. Maybe I'm a nub o.o
So, FA is not broke in war, 1st high range + 2nd high dps + high survive chance, not thing else to ask