Amulet of the Vrock

Once per day, this Amulet can summon three vrock. The demons respond to commands but in the loosest sense possible. Every time you take damage, roll a DC 16 concentration check. On a failure, you lose control of the vrocks, and they can do as they will. They love shiny, cheap baubles. Otherwise, they feed on freshly dead humanoid flesh.

"Banana pajama!" is the codeword to activate the amulet and summon the vrocks. Saying the codeword again will dismiss the creature. Only native speakers of abyssal can use the codeword to dismiss the demons.