If you're educated in the USA in pharmacy and want to come to Canada, it is not that difficult, at least in ON. You just have to write your licensing exams like any Canadian graduate would. No extra classes that I'm aware of, maybe some internship hour requirement, but nothing nearly undoable.
And I disagree with the statement that UofT goes mostly on grades. 240 accepted out of an applicant pool of 1600+. 80% average entering grade and 75% was the cutoff on the low end. There is a substantial non-academic component, but I don't know the weighing of it.
No PA school in Canada that I'm aware of. We just have NPs.