31_days | [6-Feb-2007] [Fate/stay night] Rule Breaker Breaker

Title: Rule Breaker Breaker
Challenge: 6-Feb-2007 "the spell that cannot be broken"
Based on: Fate/stay night
Characters: Caster, Souichirou
Type: Humor; 100 words
Warnings: None.
Notes: Is this covered in the video game? (I only know the anime.) Seriously— what would happen?

Fate/stay night © TYPE-MOON / Kadokawa Shoten / Studio DEEN.

"Caster?" asked Souichirou. "May I ask a question about your Noble Phantasm?"

Caster produced an iridescent jagged dagger. "Do you mean, Rule Breaker?"

"Yes," Souichirou said. "You've said that it can dispel any enchantment, with no exceptions?"

"Indeed," Caster said proudly. "However, it has no effect on other Noble Phantasms."

"Yes," Souichirou said again. "So, what would happen if you used it against an enchantment on another Noble Phantasm?"

Rule Breaker promptly vanished from Caster's grip in a puff of logic.

"Souichirou, dear?" Caster said irritably. "From now on, please concentrate on punching things, and let me do the thinking."