The final special ability of brambles is one that makes them especially dangerous to flying prey such as small birds and flying faerie creatures. One in ten brambles (not necessarily the same brambles that possess the poisoned spines) can cast a special anti-flying spell once per day, which, causes any one Small flying creature within 10 yards to be magically grounded (whether the creature flew as a result of magic or natural ability) for a period of 6d6 rounds (unless a save vs. spells is made, in which case no effects are felt). While this can be used in hunting, brambles especially like to cast anti-flying on pixies, sprites, and other faerie creatures, so that they can have the cruel fun of chasing them through the woods on the ground.