Two thoughts? 1. Did you choose to have the non-equal-arm cross for copyright reasons? Traditionally even though the red cross logo is copyrighted they don’t object to seeing it used. They actually encourage it. I haven’t got full net access right now, but it’s my understanding that M*A*S*H didn’t have to pay to use it, and neither do ‘future ambulances’ in time-travel movies. If it still might not clear moderation, you might try altering an equal-arm red with a second one in powder blue (or some other color-matching alteration.)
2. Does he heal by magic or are you adding gear?