These creatures speak only Auran but can understand Common.
An invisible stalker attacks by using the air itself as a weapon. It creates a sudden, intense vortex of wind that pounds a single target on the same plane as the creature.
Invisible stalkers can be killed only when on the Elemental Plane of Air. When performing tasks elsewhere, they automatically return to their home plane when they suffer sufficient damage to destroy them.
Elemental: Immune to poison, sleep, paralysis, and stunning. Not subject to critical hits.
Natural Invisibility (Su): This ability is constant, allowing the stalker to remain invisible even when attacking. This ability is inherent and not subject to the invisibility purge spell.
Improved Tracking (Ex): Invisible stalkers are consummate trackers and make Spot checks instead of the usual Wilderness Lore checks to trace a creature's passage.