The rarity of The Roiling Surge is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
The Roiling Surge is a skin for Morphling. The skin was added to the game on September 30, 2015, it was created by Pernach.
The Roiling Surge is currently one of the most popular skins, but it is rarely seen in the game due to its high price.