Undaunted, the deaf and hard of hearing guild, completed the Glory of the Dragonflight Hero achievement!
Wokiip from the guild informed the community via Reddit that Undaunted completed the Dragonflight dungeon meta-achievement and earned Shellack. Congratulations!
The most difficulty achievement was from the last boss of Uldaman, which took them 3 days. The guild only uses sign language and typing to communicate.
Here’s a short video of the guild completing the final achievement in Uldaman and earning Glory of the Dragonflight Hero.
Source: Reddit