It's less how they're used in canon, and, um...

Basically, you don't plan on haphazardly having Yoshika eat people's weapons or attacks constantly or eat characters, right?

Or anything like her biting characters to turn them into jiangshi.

I've seen a whole lot of people try and abuse canon abilities to have characters steamroll every fight or encounter or... whatever, so I apologize but I want to be sure.