The skin was added to the game on August 12, 2022. It was created by VALVE.
The rarity of Blastmitt Berserker is Immortal, and been equipped it takes a “arms” slot. The skin doesn’t have alternative styles. At this moment the item is available for trade.
At the moment, Blastmitt Berserker is not on the list of popular skins and is rarely seen in the game.