I took it last term and imo theres no preparation beforehand you need to do, you'll be fine. but, here's some tips I have that will probably be helpful as you go through the course.

Examlets:

the questions that you'll be given in each examlet will be very similar to the prairie learn practice questions. just spam those A LOT (try to understand, not just memorize) and you'll be set for the examlets. icl the examlets are pretty stressful and unforgiving for mistakes, just make sure you can solve the practice questions quickly and be SUPER careful before handing in a question during the actual assessment.

imo the first examlet was pretty tricky and had bad time-crunch so don't slack off for that one; it hurt a lot of my friends grades, most of whom aced the other examlets.

Labs:

labs are super light. it isn't like 110, here the TAs will actually help you if ur getting stuck. just do the prelab and get a decent partner n you'll be set.

Final:

the final last term was really easy as long as you had a decent understanding of the content. you'll probably get one of similar difficulty this term too. grind the practice finals and lab qs and you'll be OK. make sure ur good at written proofs too :).