That's Grym!

The Grym disc from Kastaplast was PDGA approved as of 6-26-2015.

"Grym is our new disc for long smooth s-curves and tailwind bombs. Grym is a distance driver with a clean shape for the typical player with a comfortable 2.2 cm rim. It's quite understable for the big arm. Grym is Swedish for cruel or awesome. Try it out for some grym lines! …or as one of our team players put it - “by the way, that Grym gooooeees...". Preliminary flight specs are 12/5/-2/2." - by Kastaplast