Thinking about it, the "the holder makes the limit" is so much of a very bad idea
Like, a bee user could make so the venom only stops the brain or respiratory system of the victim, a turtle user could make a shield so big to be around the whole city or make it so tiny that it can crush any person, a black cat user could just decide to destroy the fabric of time and space and etc
That is actually the best argument FOR the holder makes the limit I have heard.
This is like how bending in Avatar could be so much deadlier than it is shown.








