The massive winged insect has a pattern of black and yellow markings on its body and a wicked-looking stinger at the tip of its thorax.
Speed 20 ft., fly 60 ft. (good)
Giant yellowjackets attack by biting their foes. Though it has a poisonous stinger, it usually conducts combat with its bite attack, unless threatened by or confronting a particularly powerful opponent. In such cases, the giant yellowjacket brings its stinger to bear and repeatedly stings its foes until they are dead. If attacked, a giant yellowjacket releases a pheromone that agitates all others of its kind, making them deadlier and more aggressive.
The first time a creature successfully hits a giant yellowjacket it releases a fear pheromone that heightens the aggressiveness of all other giant yellowjackets within 50 feet. All affected giant yellowjackets receive a +1 morale bonus to attack rolls for the remainder of the encounter and fight without penalty even while disabled or dying.