The Tera Grendels were created by HavenHoney for the CCSF 2013. They are a genetic breed, and use Banshee Grendel (Grendel B) sprites. They are available for download at Creatures Caves. The Tera Grendels are a toxic breed and feed on detritus. It is advised to keep them away from non-toxic grendels as well as regular food, considering they use the Toxic Norn genome.