Rules: The one with less loss wins. Technique: 1. Pay attention to troop matching. Infantries restrain cavalries, cavalries restrain archers, archers restrain infantries, and siege weapons are restrained by infantries, archers and cavalries, but are effective against traps. 2. Advanced troop has overwhelming advantages than the basic one. It's often true that a plenty of basic troops can't defeat a few advanced ones. 3. Hero skills, tech, gears may bring troops buffs and increase their battle power. 4. The number of deployed troops is the best guarantee for victory. 5. Traps are very effective to kill troops, only siege weapons can deal massive damage to traps.