As for the rush..... I level up to 5-6, gather my whole army, and go after those I know I won't fail against! :D Result: no army left, but the hero is high level! (It's always like that for me, which is why I call it Murphy's Law! :D) And with a high-level hero and a small army, you can achieve more than with a low-level hero and a large army!!!
Consequently, capture more artifacts and resources!
And when there's +20% to Ice Bolt at the start, it's just perfect!!! :D :D :D :cool: