Everyone Changes Class, but I Use Fireball to Finish Off the Gods

Global mutations began, and the Calamity World overlapped with Blue Star.

Billions of people from Blue Star were transported into a post-apocalyptic world. To survive, they had to choose skills and become class holders.

Lin Mo returned from ten years in the future and entered a world overrun by zombies.

From the start, he chose the F-rank skill Fireball, activated the God-Tier Choice System, and received a god-tier rune.

Equip the Infinite Firepower Rune: Fireball's mana cost is reduced by 99%, its casting time is reduced by 99%, and its spell damage is increased by 100%!

Equip the Doomsday Calamity Rune: When Fireball hits a target, it triggers a doomsday calamity!

Equip the Ultimate Critical Hit Rune: Fireball's critical hit chance increases by 100%, and its critical damage increases by 1,000%!

Equip the **Star Roar Rune: Fireball becomes true damage, and when it hits a target, it triggers **Starfall!

Then, one day, gods from another world descended.

While everyone else was still struggling to survive, Lin Mo hurled a single Fireball.

The heavens and earth changed color, and stars fell!

The entire world was dyed red with the blood of gods...

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.