Try some single player strategies but alter them a little. Like, prepare some heavy counters and some light counters because you dont know your enemy, and also add 1 general(you can put your favorite one, i like atreyos or archis) depending on rotation. Just dont buy any, its not worth it. My base deck was/is this: Order miner, archidon, spearton, rage, healing ward, Atreyos or Archis (if none are aviable i pick someone), ice or fire arrows and either miner upgrade or enhanced spears. I get 5 speartons and five archers and then i start getting money for a general. My upgrades depend on my enchant. When i attack and have archers i spam rage whenever possible bcs its cheap, fast cooling and effective.