I'm getting a bit sick of these stacking games, all the last challenges or so were stacking games.
like its fun to play 2 of them, but not another and another and another :(
way to easy, just upgrade your arrow to max, then you can defeat every enemy, so you max out your mana, then spam angels and you win. you get 100000 exp for being bored so long, repeat that and youve got the badges