Astranaar Skirmisher

Astranaar Skirmishers are level 20 - 21 night elves found on the shore north of the lake in which Astranaar lies in Ashenvale.

Attacks and abilities

 * Evasion (Physical) - Increases the caster's chance to dodge by 25%. Lasts 6 sec.
 * Immolation Trap (Fire) - Place a fire trap that will burn the first enemy to approach for Fire damage over 15 sec. Trap will exist for 1 min.
 * Shoot (Physical) - Shoots at an enemy, inflicting Physical damage.

Objective of

 * Slaying 10 Astranaar Skirmishers is the objective of Breathing Room.
 * Drops Moon-kissed Clay for the quest Set Us Up the Bomb.

Speculation
Given they wear Sentinel's Guard, they may be members of the Sentinels.