Flare

Flare
Flare Instant cast 30 yd range 18 Mana Exposes all hidden and invisible enemies within 10 yards of the targeted area for 20 sec.
Usable by
Class	Hunter
Properties
Type	Utility
School	Arcane
Cooldown	20 seconds
Related debuff
Flare Hidden and invisible units are revealed. Duration: 20 seconds

Flare is a hunter ability that reveals any stealthed unit within 10 yards for 20 seconds. It is learned at level 32 for 1 .

Tips and tactics

If you have a suspicion there's a hidden or invisible unit in an area, you can Flare to reveal any of them. This can be especially useful in pvp or in places where you know there are stealthed mobs, such as the western wing of Dire Maul.

If a Rogue is stalking you, you're likely not to know until the Rogue has already hit you.
Using Flare now leaves a bright light on the ground, possibly alerting stealthed units you are nearby.
There is a brief period of time after using the spell, that a rogue, if properly positioned, can sneak in before the flare effect begins and get an opener off.