I think it's cool how the enemy team speech is unable to be understood. Like Samurai for example. They speak Japanese (or sounds like it. I don't speak Japanese so I'm not 100% sure) if they're on the other team. I feel like there should be interactions with characters when fighting or mid-fight, kinda like wha they planned on adding for Marching Fire update in duels.
It's boring in silent fights and would like to hear some war cries or possibly threatening lines to each other. But instead, the one shot minions do all the yelling and while they all appear male, you can hear a female voice. Or a little boy's voice. This bothers me with the Viking's minions.
But please allow talk amongst characters. Most fights are too edgy and some characters don't even have much lines to be heard.