“Gramma Carrie does not actually bond with her grandkids during the time she had them by herself,” – Nah, she bonded with Michael using a hundred bucks and change.
He’s rolling two dice at once. Clearly one is to determine attack success/failure and the other is to determine damage. Can’t imagine what splat books use a d6 and d4 for this, but maybe it’s some kind of Epic Battle supplement akin to Crusades of Valour from Travellers’ Tales. :-)
Don’t Kink Shame Carrie. :-)