So yes it is hard to tell what it happening with all the light effects..
I did a little mockup on mspaint since im at work lol.. But maybe if you either do a dark outline around the hammer and the hammers handle so ur able to see it and then add a glow you have around it.
But obviously not as thick as my edit.. just something to make it more noticeable to the eye when looking at it.
Kind of like this also..
https://www.hiveworkshop.com/threads/holy-hammer.307182/
Also, please link the model in description if there is one.