A cunning cloak appears to be a length of fabric. It has natural flexibility to appear circular, semicircular, square, rectangular, or triangular and may assume the appearance of tablecloths, curtains, valances, tapestries, rugs, blankets, or clothes like skirts and cloaks. It is rare, but not unheard of, to find them curled up like a bolt of cloth. They also possess a limited ability to shift in color, but only darker tones.

They may independently choose their own places to hunt, but they are also used as traps by owners of fortresses and strongholds if the structure is to be left uninhabited for some time.