8+4+1, you're clearly out of your mind – why not just go straight to autobattles?
That's what a blitz is. In a similar tournament on Wargaming.net, the timer was 600+300, without any extra time added for battles. The point is to find out what players prefer when playing HotA with a short timer and, accordingly, create a "popular" rating of the speed and ease of use of different castles.