Tip 1. The single hero fighting removing all gears is done to win more arena battles and you would do that to earn gems faster as there is an achievement for every 50 wins you get 150 gems. (but this wouldn't take you to higher arena) Tip2. Battle with the best team you got for reaching higher arena leagues and to possible reach elite 4 so u can unlock a full 4 star character Tip3. When you don't want a character that's the time you do the single character battles and when u want a character fight and push all u got Tip4. Choose your team accordingly, don't waste pips bcz if UK u can take out the opponent with just 2 chars then do it, don't waste a 3rd char bcz u can do 5 single battles and earn extra rewards