The rarity of Skyfire Apostate is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Skyfire Apostate is a skin for Keeper of the Light. The skin was added to the game on January 11, 2017, it was created by Jigglypuff.
Skyfire Apostate is currently one of the most popular skins, but it is rarely seen in the game due to its high price.