Plant Life: WoW Battle Pets
World Event: Hallow's End
Item: Crudely Wrapped Gift (obtained via daily Hallow's End quest)
Daily Instance: Headless Horseman [75+]
Drop Rate: 1 in 20 dropped (avg. all sources; available 15 days per year)
You can earn the "Top Rater" badge when you apply 250 or more ratings. To rate a pet on its appearance or battle prowess, login and visit the pet's profile.