Jesterskull - Thanks for the comments. I'm hoping to take it out for a spin this week and see how it goes. I'm disassembling Edgar to do it (and it should play completely differently without all the token making and with the swords subbed in for removal). I'll let you know how it seems to go. I'm guessing a few of the slower knights will annoy me. (My immediate concern is that I forgot to put in
smothering tithe).
Marton was errataed to a Knight back in 2007 (I think when they put it in an MTGO set), so feels like he should be just fine. A list of other changes made then are at:
baron-sengir-becomes-a-vampire.