Very cool that you’re running the NPC actions with your son, sounds like a cool activities to do with your kids. Mine are a bit too young (4 and 1) but you’re giving me ideas for the future ;-)
For the feats, thanks again. You’re absolutely right that those are the one I wanted, not withstanding my brain fart when I originally posed the character sheet.
Regarding the reaction attack, and the bonus action attack, I could also always roll and post the attack & damage rolls, even if they don’t apply. The timing of these attacks could have an impact, especially in the current case where Thorbin 1 hit kills the attackers. Doing it the round after means the ennemies get an attack, whereas if he hits them as an aoo reaction attack as they enter his reach, they won’t even get close enough to touch him.
On land, there would eventually be a donut shaped pile of bodies around him. I wonder how many he needs to kill to get cover from ranged weapons ;-)
Cheers
SG