All cultivators preparing to advance to Dao Fusion must face two major challenges.
The first is the inscription of Dao Runes.
The second is the accumulation of Dao force.
Leaving aside the inscription of Dao Runes, this is a challenge that any cultivator preparing to advance to Dao Fusion must face, and not just once.
The accumulation of Dao force alone is a very arduous task for cultivators because it's not easy for them to acquire Dao force, whether through defeating enemies or arduous cultivation, the efficiency is not high.
However, each inscription of a Dao Rune requires a large consumption of Dao force.
From Chen Wulei's situation alone, it's evident that the plan to forge Dao Fusion has been in execution for so long. Over eighty cultivators brought back half of their spoils to hand over to Chen Wulei, yet he has only tried it a few times.
