This creature is a large spheroid with ten octopus-like tentacles protruding from its body. Hair grows in broken patches along its body. Its eyes are stark white and pupil-less. Its large mouth sports long, yellow fangs.
At will—minor image (DC 13)
Str 14, Dex 13, Con 15, Int 10, Wis 11, Cha 12
A decapus can move through trees at its base climb speed (30 feet per round) by using its tentacles to swing from tree to tree. Trees used by the decapus in this manner can be no further than 10 feet apart.
A decapus can mimic any creature it has previously encountered with near total accuracy, though it cannot mimic humanoid speech longer than two or three words at a time. A DC 13 Will save detects the ruse. The save DC is Charisma-based.