Well, she only appears in Tribes of the East anyway.
I'm talking about the statement above that undead are better suited for Marcell because undead are stronger under a Necromancer. I'm saying that the undead don't care who commands them. The undead will be stronger under a Knight (assuming the same level and adequate development), but the Necromancer is a strong mage, and in the end, he will cope just as well as the Knight.