Creatures native to the Elemental Plane of Air that serve wizards and sorcerers

Invisible stalkers are creatures native to the Elemental Plane of Air. They sometimes serve wizards and sorcerers, who summon them to perform specific tasks. A summoned invisible stalker undertakes whatever task the summoner commands, even if the task sends it hundreds or thousands of miles away. The creature follows a command until the task is completed and obeys only the summoner. However, it resents protracted missions or complex tasks and seeks to pervert its instructions accordingly. Invisible stalkers have an amorphous form. A detect invisible spell shows only a dim outline of a cloud. Don't forget to apply the standard penalty of -4 on the attack die when an invisible stalker is attacked by a creature which is unable to see it.

Highly intelligent, magical creatures summoned from another plane of existence to perform tasks for powerful magic-users.

Creatures native to the Elemental Plane of Air that serve wizards and sorcerers

A denizen of the Elemental Plane of Air, an invisible stalker encountered on the Prime Material Plane has been conjured and bound to service by a magic user. The summoning mage retains command of the creature until it either fulfils the mission which it was summoned to perform or it is killed. While on the Prime Material Plane invisible stalkers can only be viewed by magical means (e.g. gem of seeing, true seeing, detect invisibility); otherwise anyone attacking an invisible stalker suffers a -2 penalty "to hit". An invisible stalker cannot be killed on this plane. Reducing it to zero hit points merely banishes it back to its home plane for a period of 1 year plus 1 day. Invisible stalkers are useful, if dangerous, servants. Once given a mission they will relentlessly pursue their goal, motivated more by a dislike of forced service and a desire to return to their home plane than by any sense of devotion to their summoner. Invisible stalkers are faultless trackers across any surface or distance and, if ordered to kill their prey, will attack without checking morale until either they or their target is dead. As implied above, invisible stalkers are not willing servants but will not