I wouldn't play with such a smart player again, because they would waste a lot of time with this kind of tactic. Especially if there's no timer.
I generally consider this disrespectful to the opponent.
But what about in Heroes 5, defeating a horde of zombies with a single nymph? :D :D :D
Or with Inferno and one dog? In general, battles for Inferno were long. Only longer battles were against PRO players (a person could spend 20 minutes on each turn in the 3rd week) :)
