Getting bored of the same old monologues from le poopiehead Dentist? No? Well you're in luck(?)!
This mod override changes The Dentist's Hell's Island dialogue to Megumin's various quotes.
Lines are taken straight from Konosuba, tragic music included.
Check the anime out, it's a good watch.
Updates:
Update 1: Added the 2nd file for the "Rats in The Cellar" voiceline