I had to empower all of Nightingale's attacks and gore shots and through the entire MAST; I only rolled a skull once (of course it was on a Gore Shot and she took 3 damage).
I replaced the Warhammers on Rook after the Mast and gave him a 1-hand crossbow and Shield, he only hit with the hammers one time the entire MAST.
Certain characters NEED the empowerment die (because Rook is an underperformer and it might be the only way he does ANY damage and he gets 2 free). Certain weapons (like the Bow of Justice) requires 5 shields and how do you do that without the Empowerment die?
But if you're just rolling a regular attack, even if you don't roll the skull you might roll 4 books (useless for me) or 1 shield (mostly useless) and the chances of a good outcome are actually pretty small. Ditto with dodging really. Zeke's reroll mitigates that some.
But I started the crawl thinking it was something you did if you had the SP but now I think this is terribly wrong.
I almost feel like for weapon attacks, I'd rather substitute a purple die for the empowerment die, though it might be too powerful. Or if you roll a skull you roll again and if you get a skull again, it sticks.