Between May 15th and May 29th, TERA players on En Masse servers will be able to get hold of special themed costumes from the Store during the Attack on Titan crossover event that has already been announced for Japanese and EU servers.
You can purchase amazing TERA × Attack on Titan style costumes and items in the TERA Store, made possible with the cooperation of Kodansha. All your favorites are on display, with special emotes, tasty potatoes, special keys, and scout outfits for every race and gender.
Check out the TERA site to learn more.