Eskero: The pen and paper RPG system

I'm thinking that maybe Orators can have a memory based mechanic, that allows them to hold over unused dice or something like that and they can use them in the same battle with that sort of feedback effect. It feels like there needs to be a more defined consequence though. Like maybe the bonus dice go to the GM as you said, where the GM can use them to give the enemies more powerful retaliations, or spend them to summon something more powerful, like feedback from the gossamer.