Most noteworthy, Balloon is vulnerable against any swarm army in the sky, since it can’t attack units. This is the time where you have to deploy the reinforcement to support it. Well, if the enemy deploys a swarm army such as the Bats, Minion Horde, etc. You can use a spell wiper like arrows, fireball, or zap to overcome the situation. In addition, you can put a splash damage force behind it like Witch, Wizard, Executioner, etc.
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