The rarity of Ironclad Mold is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Ironclad Mold is a skin for Sand King. The skin was added to the game on January 11, 2016, it was created by Crowntail.
Ironclad Mold is currently one of the most popular skins, but it is rarely seen in the game due to its high price.