for quickest end game,use a 7 card only deck: 1 kamikaze,1 peasant,1 dwarven boon,1 reaper's bounty, 3bag of gems.For highest score chasing ,use as many as portal growth you can fill in the deck.
super easy way to get the hard bagde:
get a group of 3, do some air tricks and do the hang glicer and hold the up for the trick score keep increase,i got final score of 70k by hold the key until i get something like 11k x4 for trick score.Then let the banana hit on you and have a save landing you will get the badge.
the game is simple with lines of archers even at difficultly at son of zeus.Just let the enemy past for some rows and create 2-3 lines of archers and wait for the enemy's fail.