So if we play strictly by the rules, since we definitely use cards (and often sites) past Towers block, we CANNOT cancel skirmishes with any ringbearer with any of those cards?
But if we decide to slacken up a bit... one option is that Frodo is ok but ARB are not, and another option is to only allow cards that state "Ringbearer" specifically. Thanks guys for those helpful answers.
I'll probably talk to my one cousin about it and see what he wants to do. We play with a couple family members, but he and I are most serious and tend to look up all the rules, and make decisions between formats when necessary. I'd love to play with more people, but outside of my extended family I know no one who'd play.