Yang Haoyu had Jiang Feng study spirit furnaces because he knew Jiang Feng's future would involve far more than simply acquiring one or two of them. He would have to fuse them. Truly powerful spirit furnaces were never merely individual furnaces, but fusions. A fused spirit furnace belonged to its owner alone, and its power was impossible to predict.
Although fusing spirit furnaces was extremely difficult, Dream Paradise happened to possess the ability to facilitate the process.
Of all known spirit furnaces, Sheng Cai'er's Reincarnation Spiritual Furnace was the strongest, but that only applied to individual furnaces. A fused spirit furnace could very well surpass it in power.
Of course, fused spirit furnaces had appeared throughout human history, but those whose power exceeded the Reincarnation Spiritual Furnace were almost unheard of.
Jiang Feng's Doppelganger Spirit Furnace was powerful enough to summon three doubles, making its overall combat strength arguably the greatest among all spirit furnaces.
However, its power served a different purpose from the Reincarnation Spiritual Furnace's, making the two difficult to compare.
For Jiang Feng, though, the Doppelganger Spirit Furnace was more powerful.
The price of merging with the Reincarnation Spiritual Furnace was simply too terrifying. It could be said that this furnace was only suitable for a fight to the death.
Using it in anything less than a desperate situation would feel wasteful.
The Child of Reincarnation had once relied on this spirit furnace, together with the divine artifact Sword of Reincarnation, to severely wound the Demon God Emperor of that era.
Although that Demon God Emperor had already been in his twilight years, the feat had still given humanity hope of defeating the Demon God Emperor.
That battle had also greatly enhanced the Assassin Temple's prestige, allowing it to hold a leading position within the Alliance for