?? Fenryl didn't use spell againist Baam,i'm pretty sure it would dispel as soon as it touches baam. Fenryl is a shinheuh itself,and was using it's own ability to teleport places with kaiser. Fenryl only used his teeth to penetrate baam's skin,so it's not spell.
Yes it is. The spell was about making the wounds bleed continously. Bam needed Kaiser to remove the spell or he would have bled to death.
The first spell he broke was the rice pot's spell during second revolution between the dallar show and Name Hunt Station.
It took a lot of effort to do so.
After finishing his revolution, spells broke just by touching him.
Except for White's spell of course, but that is bad wrighting.
Revolution being all about manifesting the true nature of an irregular, I think his abilities to break spells is similar to his way to destroy traditional shinsu control. I believe it is an irregular thing and not related to Arlene.