Thanks.
I thought about fire, but after the orca scene I didn't want to deal with particles again. Also, I wanted the hero to be standing tall, rather than hiding behind his shield, maybe a bit of smoke coming from the dragon's mouth, as though he's about to or already did his fire thing. It doesn't matter now anyway, I already called it done, I moved onto the next thing. Lack of interest from the forum unmotivates me.