Board Thread:Episode Discussion/@comment-24993958-20181026055523/@comment-26397825-20181101054633

RT released a new shirt with that Grimm on it calling it the Sphinx. So it seems it's called a Sphinx Grimm.

Also, it is against Spoiler Policy to upload screenshots to the wiki before the episode is public, so even if they had some they wouldn't be able to share them with you except via external links such as imgr.