"Did we beat the master?"
"No Kakarot, that was Chan."

Note: Not perfectly game accurate (Did you know in the game one of the toads say Tayce T. (the baker in paper mario 64) is the master's sister), some copy pasted information from a wiki (about toads), and this is the vanilla version. None of that difficulty mod nonsense.
Listen, he's awesome. He's also very ill right now so he can't go all out.

Intro 1: Meeting him for the first time and possibly fighting
Planned Intro 2: Listen, he's old. He needs help getting groceries. (I couldnt think of how to articulate this intro yet)

Ran into the same issue with him like with culex, I can't describe shit! But barely any wikis had him! So I basically had to freeball him.