How to play? Gathering relics quickly (for those who want a fancy second city)

Okay so you want a second city and don't want to spend mithril! Then collecting relics is your only way without getting lucky with Gollum's riddle (which still hasn't happened to me;)) . Here is a way to maximize the chances of getting relics much faster than 1 camp at a time! First upgrade your great hall, muster point, and sage tower to at least 7. Higher is better of course. Then send your army into an army camp using your best hero! Then immediately send as many 1 unit attacks as you can right in a row! If your fast the last one will be sent before your big army hits the goblin camp. So the first army kills all the troops, the others all hit the gob camp before the goblins respawn. Each hit has a chance to get a relic. You also get the bonus of leveling up your other heroes a little quicker! Go kick some goblin butt for yee shiny city!!