This feat allows a Druid to expend two uses of Wild Shape at the same time to transform into a Monstrosity.

The druid may only transform into a Monstrosity that has an Intelligence of 3 or less.

This transformation follows the normal rules of Wild Shape, other than the Beast stipulation, and is subject the same CR limitations imposed by the Druid's Circle Forms class feature. 

Examples of Monstrosities available: Rust Monster, Hippogriff, Death Dog, Griffon, Owlbear, Bulette, Gorgon, Young Remorhaz, Chimera, etc.