Skybreaker the sword is a special item. It is no longer available in the game and was available in 2015 as a special offer deal for a limited time. It shares similarities with the Stormblade weapon, and is a living item.
Even though it is no longer available, many players that are still playing the game have the mace. This mace shares many similarities with the Named Items that also give your hero certain advantages.
Continue: Living Items