The most prominent feature of a Great Wroggi is its delicate, translucent sac-like organ around the neck. Because of its translucence, poison can be seen in the sac before it spews out as a toxic mist. The Great Wroggi has a slick salamander-like skin similar to the Iodrome, and, like its close relatives the Great Jaggi and Great Baggi, Great Wroggi are usually accompanied by a group of their smaller kin - in this case, Wroggi.
Bird wyverns that spit a poisonous mist. Wroggi travel in packs that are led by the largest and most toxic member. The poison is made in a sac-like organ around its throat; if this is destroyed, the creature's ability to spit is impaired.