Endless Night Cape is a skin for Abaddon. The skin was added to the game on June 24, 2019. It was created by VALVE.
The rarity of Endless Night Cape is Mythical, and been equipped it takes a “back” slot. The skin doesn’t have alternative styles. At this moment the item is not available for trade.
At the moment, Endless Night Cape is not on the list of popular skins and is rarely seen in the game.