New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
First, cards cannot indirectly negate themselves.
Second, characters cannot activate later in battle if they were prevented.
The second is actually incorrect for ongoing abilities; since they are ongoing, they are always trying to activate, even if they are prevented.
True, but the original question only dealt with Kinsmen, Ruth, and Achan's Sin, not with the ability for the rescuer to play anything else.
Actually, while I want to know how the specific case works out, I'd really like to know the undergirding principle that makes it happen.