Everything boils down to caution.
The most important thing Lin Yue learned in the Otherworld is this.
Caution allows him to calmly analyze and think through any unexpected situations or disadvantageous circumstances he encounters. It also enables him to quickly turn disadvantages and crises into favorable conditions.
Moreover, when his usual combat methods are restricted, he can immediately find an alternative way to replace them.
This is why he experiments with various newly acquired weapons.
He can't always rely on Bai flying into the sky and pouring gasoline. If there's something that isn't afraid of fire, like the Poison Celestial Dragon, then the strategy of burning becomes unusable.
Lin Yue still remembers the first time he fought the Poison Celestial Dragon; it was finally killed by the gasoline can he threw into its mouth, rather than by the gasoline fire from earlier.
