The ccoa can use its action to polymorph into the form of a dark storm cloud or back to its cat-like form. In cloud form, the ccoa appears as a swirling 10-foot-tall black storm cloud with a 30-foot radius. The cloud form has a fly speed of 40 ft., can move through a hostile creature's space and stop there, and move through a space as narrow as 1 inch wide without squeezing.