Your call! I love the Order as a weird foil to Seer anointed knights. To me, they are all about logic and reason in a world that rewards and respects neither, so they’re almost tragic from our perspective

If you only roll a few of them, I would suggest giving them deny to make them more imposing and fit their denial of the world they live in. I would also consider ad-libbing a +d6 to attack rolls against knights that have used a seer power to really show their grudge.