Auto-translated
The hero himself, of course. Three turns will be enough for him to eliminate most of the archers, and the hounds will finish off the rest. However, players have long understood that hounds are incredibly overpowered, and almost all games are played on the TE (Tactical Edition) mode, where their invisibility has been removed. There, demons with high attack power are indeed among the best.
As for the hounds, they aren't that overpowered. Although, of course, a strong hero can attack an enemy with a larger army using only hounds, and while they are in stealth, bombard them with spells. However, there is a way to eliminate them. For example, remember where they disappeared and place a crystal of secrecy there, or approach them with another unit.