How do you increase the morale of an item (example ogre's club)

[DaviddesJ]

I have the Crown of Blackthorn (2x damage for friendly thorns, which makes them pretty useful in my army), and it seems that its morale goes up sometimes, as well as down. There must be some things that I do (killing enemies?) that help the morale, as well as things that cause it to go down.

It's too strong for me to suppress, but, when it gets down to zero (and stops working), and then I check it later, it's back up to 4 or 6 or 8.

Is there any way to view your hero and items during a battle? That would make it easier to figure out what's causing its morale to increase or decrease.