is Nottingham a respected Uni for MC firms

So reading all the rankings I'm a bit worried because one of my choices is University of Nottingham which doesn't appear to be high in the rankings for law, would that inhibit a competitive application for Magic Circle firms in the future? What else would make great application alongside your University that you attend?

Your mistaken. Its not about the university, but your degree grades and the extracurricular you did at uni relating to law - such as mooting. https://su.nottingham.ac.uk/activities/view/mooting/home

Do all Universities participate in mooting

So reading all the rankings I'm a bit worried because one of my choices is University of Nottingham which doesn't appear to be high in the rankings for law, would that inhibit a competitive application for Magic Circle firms in the future? What else would make great application alongside your University that you attend? Also do you HAVE to attend a russel group uni

Nottingham is a perfectly good university for Law. This is subjective, but my perception is that the general reputation for great law universities goes something like this:
Tier 1: Oxbridge
Tier 2: LSE, UCL and KCL
Tier 3: Bristol/Nottingham/Leeds/Warwick/Durham/Exeter
All of the above universities are specifically targeted by Magic Circle firms. This is in the form of MC lawyers coming in for talks, setting up a stall at your university's career fair, hiring students from your university as campus ambassadors, attending law society networking events, etc.
A quick search on LinkedIn will show you that many students from Nottingham go on to secure training contracts at the MCs. Another thing to add is that when you start university, you should definitely look into other law firms beyond the MC when applying for things like first year insight schemes. Many of the silver circle firms and beyond offer the exact same pay as the MCs but have a better work-life balance.
Also, you don't HAVE to attend a Russel Group. Having visited many of the MCs, they've all stressed that they're just looking for strong applicants, regardless of what university you've attended. An analogy: there are some secondary schools/sixth forms that are better than others, e.g. a grammar school likely has higher quality of teaching compared to a local comprehensive. It would be ludicrous for a top university to reject an applicant who has high predicted grades/a good personal statement just because they didn't go to a 'good' school. This same logic applies when applying to law firms. Their focus is the quality of the application.
As someone else mentioned, having good extracurriculars is important. However, these don't have to be law-specific. The firms just want you to demonstrate that you have the skills they value. Most firms will have a section on their careers page that lists the qualities they look for in an applicant, but some general ones are good communication skills, organisation, innovation, problem-solving skills and attention to detail. Find some extracurriculars (that you genuinely enjoy too) that help you to develop these skills.

Why do silver circle firms pay the same as magic circle firms if you do less work??