Wizard: I Have the Spell Optimization Panel

After Louis's flame arrow killed the enemy, a panel suddenly popped up in front of him: [Flame Arrow proficiency is improved, please choose the optimization node:] [Penetration]: Flame arrows can penetrate objects. [Swift]: Increase the casting speed of flame arrows. [Burning Embers]: Increases the probability of flaming arrows igniting objects. [Strike]: Increase the maximum distance of the flame arrow and increase the damage. Others upgraded their magic, but with more fire and a wider range. But Louis' upgrade of the flame arrow fundamentally changed the nature of magic! "Why can this guy's flaming arrow hit ten people at the same time?" "How could he shoot eight arrows in three seconds?" "Why can those flames burn for three days and three nights?" "How can a mere flame arrow penetrate the dragon's scales?" While everyone was puzzled, Louis had already understood: the real secret of the spell optimization panel lies in the combined qualitative change effect of different optimization nodes that are constantly superimposed! When all four optimization paths reach their limits... One arrow burns the city, two arrows break the boundary, three arrows burn the multiverse!