In the arena, the Z-axis is just as dangerous as the X and Y axes, and flying threats operate under completely different tactical rules.

Flying units completely ignore the river, bypass all ground-targeting defensive buildings, and are immune to crucial spells like The Log or Earthquake.
Stopping the Air Tanks
While your Musketeer is busy slowly shooting down the Hound, the Balloon casually flies past and drops a bomb that obliterates your tower instantly.

Simultaneously, you must deploy your secondary anti-air unit (like Bats or Minions) specifically to target and assassinate the Balloon before it reaches the structure.
His spawn damage and constant stun effect drastically slows down the Balloon's approach.Beware of the Lava Pups.If your deck relies entirely on ground defense, you will lose. Versatile Anti-Air Options
When selecting your anti-air package, versatility is key; you need units that are strong against air but also highly useful against standard ground pushes.

A well-rounded deck should include one high-DPS sniper, one flying defender, and one small spell capable of clearing flying swarms.
The DangerHow to Stop itInferno Dragon (High escalating damage)Electro Wizard or Zap spell; the constant stun resets the damage beam completelyMinion Horde (Massive flying swarm)Arrows or Fireball; never try to defend this with single-target units, as they will be overwhelmed instantly Total Coverage
You must respect the Z-axis and prepare your arsenal accordingly.

Control the ground, but never forget to watch the skies.

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