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I am attempting to find out for want of a better term a "Pigeon Hole" for a type of magic!

As an analogy, and a very bad one at that because In the novel by Stephen King "Christine" it was possession.

The Protagonist 'Arnie', described as a nerd having poor complexion who buys a wreck of a Plymouth Fury he calls 'Christine', and proceeds to rebuild and refurbish.

In return he begins to develop a "Jock" type physique and his complexion clears up.

So if this was magic what would it be "Pigeon Holed" as?
And would it be "Pigeon Holed" differently if say a person or persons cared for and nurtured a garden and the another garden benefits, or maybe an inanimate object and another is also?

Thank you