Allows a Warforged to take on the form of three types of giant animals: one for land, one for the sea, and one for the air. These forms can be whatever animal you wish, but you can ONLY have one of each. If you wish to change your Animal forms, you must find said animal and make physical contact with them for 10 seconds. This process can be somewhat difficult, which is why most Warforged don't tend to chose this Feat. 

      For viable Giant Animal forms, refer to the Monster Manual.