This happens when your code is raising the following:

    res, *xs = calc(xs)  # catching brackets
TypeError: cannot unpack non-iterable float object

It seems something is trying to import the ast module when this error is handled. Changing the python version effectively avoids the extra imports/failed assertions, but basically, if you fix your code, those failed assertions will disappear.

change the version of Python from 3.11 to an earlier verison, worked for me

Comparison of the 3 most prominent Python solutions, that is.

Your code looks great! I would recommend moving the effective dict within the expected_damage() function, similar to how you had it in the get_move() function in pervision verison. I think it would look cleaner and more encapsulated; however,that is just my humble opinion. Again, great job!