The rarity of The Dauntless Set is Uncommon, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
The Dauntless Set is a skin for Juggernaut. The skin was added to the game on Invalid Date, it was created by Vermilion Wlad.
The Dauntless Set has been recently added to the game, which makes it rather popular with the game community.