Using a relay script on eg. the Witchess piece selection

I'd like to put a relay script in place to rewrite the "Play against the Witchess Pieces" screen, to remind me what item each piece drops. What's the easiest way to do that? Since that selection page is just a subpage of campground.php?action=witchess, do I need to create an overall campground.php relay, and then have it only rewrite when the page text matches the Witchess page (to avoid rewriting all campground.php pages)? Or is there a better way to make the relay page-specific?

It's actually a choice.php override. Take a look at Bale's, which does a very nice job.

Veracity is referring you to the script I posted here which does exactly what you want.

Excellent. Thanks, both of you.