Really unique concept from all the games I've played so far and very on theme. I liked the card system for upgrades in between rounds. Doing all the art and development yourself is super impressive!
I would love to see some more polish with the shouting mechanic to give you feedback as to how it did/didn't reach the king, but the # of ogres/orcs showing up made it obvious that the louder I was the more of them I had to fight.