Stunners attack in groups in the company of at least one Goetia. If there are any Goetia in the enemy party when all the Stunners are killed, the Goetia will respawn them. Thus the Stunners should be killed only after the Goetia is killed to save time. If all the Goetias are dead, the Stunners will flee when attacked with magic. This can be used as a real time-saver.