FS

The abbreviation FS can refer to the following skills:
 * Ranger:
 * , an elite Pet Attack in the Beast Mastery attribute.
 * , a Nature Ritual in the Beast Mastery attribute.
 * , a Nature Ritual in the Wilderness Survival attribute.
 * Elementalist:
 * , a spell in the Fire Magic attribute.
 * Assassin:
 * , an Off-Hand Attack in the Dagger Mastery attribute.

FS