Two Bladefury Sentinels weren't enough to deter Lin Mo. He successfully defeated the two by relying on his trained skills, albeit not as easily as he thought he would, and took down the Floor Guardian with four shots of the [Starshot Revolver].
Once the Floor 4 Guardian fell, the mental and spiritual strain brought by drawing out the power of what could be graded as a divine artifact reached its maximum.
If he continued using the gun, he might just lose consciousness on the spot. Consuming store products also seemed to be useless as the gun required him to truly put a stop to using it and let the strain recover naturally.
That's why after opening the reward chests, he took a break, wrote a draft for his report regarding the testing of the gun before preparing himself to use the [Celestial Duel Gear] on Floor 5.