Teysa Karlov, Orzhov Baroness
Scion of an old, rich, powerful family. By default a lawyer (and a very good one).

Considers herself completely unprincipled, but actually has a functional conscience and will, if given the opportunity, break with her family and put herself at substantial personal risk to be a hero - and devise post-hoc justifications for how this was in her enlightened self-interest.