The alternative option is fusion! Three Saint Bodies can be fused into one, a single Saint Body that carries the might of all three.

A sharp light flickered in Lu Changsheng's eyes. He remembered that Venerable Huo Yun, whom he had met at the Gourd Immortal Sect, had been attempting exactly this, fusing several Saint Bodies into one to reach the Martial Saint Realm.

Evidently, fusing Saint Bodies had to be extraordinarily difficult. One had to begin forging all three Saint Bodies simultaneously, then attempt to merge them completely into one. The process demanded trial after trial, for incompatibilities and clashes between Saint Bodies were inevitable.

In other words, if I want to fuse these three Saint Bodies, I must prepare the materials for all three in advance and forge them at the same time. Whether the forging succeeds depends entirely on repeated attempts, adjusting bit by bit according to my own condition until I find the point of balance and fuse the three completely into one. 

And if the materials for any of the Saint Bodies are insufficient, or any one material is missing, then the fusion process cannot be completed. 

Lu Changsheng was...