Got an idea...

In the war towers, among the helpers... Could be fun to have a fourth 'seeker', along with Tom, Dick... This fourth one maybe a girl (to change) and this one could be sent to search for formulas.
She would find them not by 'conquest' but in a more seductive way and would have no armor.

This character could replace or extend the dancer, that is not very useful.

For example, we may ask her for an enchantment OR a potion formula.
And we had to give her gold. The more gold we give, the more chance she would have to find the stuff.
When she turn back to the tower, she would have (or not) found the searched item (may be a randomly choosen item, either a formula or an enchantement).

That should improve the use of all the helpers, cause we would spend more time sending the other helpers to search valuable stuffs (for example : diamonds) in order to sell them on the market and get more gold to pay the enchantment/potion seeker.