The Great Calamity is a skin for Lycan. The skin was added to the game on June 24, 2014. It was created by VALVE.
The rarity of The Great Calamity is Mythical. The skin doesn’t have alternative styles. At this moment the item is not available for trade.
At the moment, The Great Calamity is not on the list of popular skins and is rarely seen in the game.