The skin was added to the game on May 2, 2022. It was created by VALVE.
The rarity of Summer Lineage Helm of the Warbringer is Rare, and been equipped it takes a “head” slot. The skin doesn’t have alternative styles. At this moment the item is not available for trade.
At the moment, Summer Lineage Helm of the Warbringer is not on the list of popular skins and is rarely seen in the game.