In a short month, the Mystic Skeleton Battlesuit had experienced extreme tests that even many high-level crystal suits never did.
Not only were they great challenges to the crystal suit, they were challenges for the Exo, too.
For example, extreme defense tests required the crystal suit to be struck in the front for an entire hour.
The super pressure test required the crystal suit to punch and kick for several hours in gravity ten-times stronger than usual and ten-times the usual atmospheric pressure.
In other sects and universities, most of the extreme tests were done through special testing magical equipment, or by several test pilots in turns.
But in the Refining Department of the Grand Desolate War Institution, all the extreme tests were done by Li Yao alone.
He was wearing the crystal suit day and night like a metal puppet and would do every extreme test in person however difficult it may be.