There are some items we can (or need to) use on lion/lioness only once.
For example, you changed your king's base to Unholy. Now you can't use Unholy Body on your king. But you still see him in the list of lions when you use this app.
You don't need to add Angelic blessing to the same lioness twice. But there are every lioness in the list, when you choose lioness to be blessed.
My suggestion is adjustment of some items to shorten its lists of lions that can be affected.