Owlbear
Owlbears are just some bored wizard's unholy combining of a bear and an owl. Although they look very cute, plushy, and lovable, they are in fact purebred killers. Once you walk up to one for a hug, you will be immediately improved grabbed and mauled with cuteness until you expire. They WILL fuck your shit up.
Also the cause of the best rpg. http://www.1km1kt.net/rpg/owlbears