How long did that take you? O.o
About an hour. I only quit cause I got bored and tired lol
What team?
Here is the team I used:
Wight
Sacrifice
Void Portal
Siren
Basically I got lucky cause the enemy had dragon eggs as their last troop. So I killed all enemy troops besides the dragon eggs and then I buffed up my WIght and used it as a tank while I cycled with void portal and sacrifice. I would summon a daemon with void portal, then sacrifice it. Rinse and Repeat.
Would never attack the enemy so it would continue to summon a baby dragon and gain 12 life. Then I would instantly kill the baby dragon with my Wight and continue on.
Nice. How would you have reacted if when the battle ended, the servers crapped out? 
I was up to like 45 and then the game crashed on my phone.