"This highly prized bit of lightning glass, roughly polished in sand, lets you see what's odd about every strange cub or lioness when you peer through it."

It could be called Lightning Lens, or any number of other things. Basically, it's an account upgrade that lets you see if any lion, whether in Trades or in a pride, is a mutant or not. An upgrade might let you see what the mutation is. It would only work for a specified period of time - 8 hours a day, a month, and of course be more expensive as you paid for more. I would think a day is about right.

I would like to see this item cost GB in the basic mutation viewer mode, and cost actual USD if it let a person see what the mutation was.

As a player, you would see the lion's name shine in a different color than normal, and when you went to their page the mutation field would be filled in, in that same color.

This would be really helpful for breeders and also for the game as it would increase revenue. I know I'd pay for the service.

A little clarification: This idea came about because whenever I see cubs for sale, I wonder "is one of those a potential mutie who's just going to be chased or go to the enclave?" However, nobody has the time or money to check each and every lion with the Falcon. This should be a rare ability, hence the high price.

Let me know if you have ideas I could add to this!