I'm pretty sure these are GW horrors but they are larger then my mental image of the regular horrors and the bag had them labeled as 'purple horrors' but Google gets me nothing and Solegends hasn't helped much, especially since very few of the images on their site have them with spiky tails. Any ideas?
I included a few random things for some semblance of scale.
![Image](http://i1115.photobucket.com/albums/k558/inkpwn/0ae0df86-75bb-48bc-b840-b97ff9efe2d1_zps41df7874.jpg)