The reason why the Dark God Island Master proposed such a competition method
was actually rooted in a playful agreement made with Bai Tianhan initially.
Bai Tianhan had once asked the Dark God Island Master to pass on his formation knowledge to Xu Nian in the future.
The Dark God Island Master jokingly said, if Xu Nian could comprehend a low grade array within ten days,
then he would teach Xu Nian all his formation skills.
However, Bai Tianhan told the Dark God Island Master, "No need for ten days, three days will suffice."
Thus, the two set the wager.
You see, for someone who has never comprehended a formation,
to understand even the most basic low grade spirit array in three days is simply impossible.
At least, the Dark God Island Master had never seen such a case.
The smartest formation genius he had met needed ten days.
A disciple with good comprehension would need one to two months.
Those of average talent would need at least three to five months.