What would happen if a Fate hero suddenly appeared in the world of Fairy Tail one day?

When Infinite Blade Works versus Dress-Up Magic,

Whose firepower will be greater?

When Karna's God-killing Spear is placed on the neck of the God-killing Mage, will the God-killing Mage still dare to use the banner of destroying gods?

When Siegfried's Fantasy Sword meets Acnologia,

Will you still apologize to the devil?

[JOJO+Comedy+No System+Single (No) Female Lead] After waking up, Jiang Zhou found that he had traveled through time and was still in the Green Dolphin Aquarium Prison.

Although he didn't have a system, Jiang Zhou still relied on his familiarity with the plot to successfully seize the invincible Platinum Star Stand, and embarked on an invincible (crossed out) journey from then on.

Jiang Zhou: Star Platinum, White Snake, Weather Forecast... Oh, I'm so confused. Which one should I use among so many stand-ins?