Mantle of the Whispered Bond is a skin for Templar Assassin. The skin was added to the game on July 22, 2019. It was created by VALVE.
The rarity of Mantle of the Whispered Bond is Immortal, and been equipped it takes a “shoulder” slot. The skin doesn’t have alternative styles. At this moment the item is available for trade.
At the moment, Mantle of the Whispered Bond is not on the list of popular skins and is rarely seen in the game.