The rarity of The Sea Dragon's Set is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
The Sea Dragon's Set is a skin for Slardar. The skin was added to the game on April 23, 2013, it was created by K-Pax.
The Sea Dragon's Set is currently one of the most popular skins, but it is rarely seen in the game due to its high price.