Different troops have their own features, however, some troops are not so easy to control.
1. Giant. Many players like to use Giants as meat shield for their high HP. But they will funnel into different groups and cause failure when meet hybrid base.
2. Healer. Healer is the only troop that can?t attack. Sometimes she keeps on healing one target and ignorants other troops.
3. Tier 1 troops. This is an efficient composition to farm. But they are weak to against splash damage defenses and Giant Bombs.
4. Wizard. Wizard has amazing output dps. However, sometimes he won?t attack the target that you want him to.