She helps Wilkins in his plan , and eventually she poisons Angel .
Although Faith works with Buffy at first , after accidentally killing a human , Faith becomes irrational and sides with Mayor Wilkins , whose charismatic behavior influences Faith 's dark side .
Buffy helps Mayor in Wilkins ' plan , and eventually Buffy poisons Angel .
Although Faith works with Buffy at first , after accidentally killing a human , Faith becomes irrational and sides with Mayor Wilkins , whose charismatic behavior influences Faith 's dark side .