So I have all the other Vesnali Achievements but the Vesnali Champion Achievement wont trigger for me. Can anyone help me? :)

I could be wrong, but I think that was from several years back - doubly thinking so for the fact that it's not even listing the requisite achievements despite its requisites saying 'Get these Vesnali achievements'. I would doubt that it's an active achievement. Maybe file a ticket to find out for sure?

Thank you for answering my question. I think you're right :)