The rarity of Relics of the Drowning Trench is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Relics of the Drowning Trench is a skin for Tidehunter. The skin was added to the game on September 9, 2015, it was created by Godzy.
Relics of the Drowning Trench is currently one of the most popular skins, but it is rarely seen in the game due to its high price.