Anti-Air Guide

How to plan for flying enemies in Realm Defense

Flying enemies create some of the most confusing losses because they ignore the part of the map that looks strongest. A ground lane can be perfectly controlled while flyers slip past the main kill zone and reach the exit untouched. A good anti-air plan starts before the first tower is built: read the flying path separately, choose heroes who can actually reach it, and keep enough gold flexible for the wave where air pressure appears.

Read the flyer path as a different lane

Do not assume a tower that handles ground enemies also solves flyers. On many maps, the air route crosses the ground route only briefly, so a tower that feels central may fire for only a second. Before starting the wave, trace where flyers enter, where they overlap with ground enemies, and where they pass closest to your heroes.

The best anti-air position is usually not the earliest point on the path. It is the place where flyers remain targetable while ground enemies are also being controlled. When air and ground threats overlap in the same screen space, hero skills and tower upgrades produce more value because one action protects two problems.

Choose heroes by reach and attention cost

A hero is a good anti-air answer only if they can damage flyers without abandoning the rest of the map. Fee, Smoulder, Jett, Cyra, and other ranged or flying-capable options can help, but the real question is whether their attention cost is low. If moving a hero to hit flyers causes the ground lane to collapse, the lineup still lacks a complete anti-air plan.

Summons and control can also help indirectly. If ground enemies are frozen, feared, blocked, or delayed, your ranged hero has more time to target flyers. This is why a mixed team often beats a pure damage team: control buys the seconds that make anti-air damage consistent.

Spend gold after identifying the air wave

Many players over-upgrade ground towers before the first flyer wave arrives. That makes the map feel stable until the exact moment it fails. When a stage is known to include flyers, hold a portion of gold until the first air pressure is visible. Then upgrade the tower that fires the longest on the air route, not necessarily the tower with the highest total damage on ground enemies.

Exit insurance matters for flyer maps. A cheap backline tower, a ranged hero held near the exit, or a saved control skill can rescue a run while most resources remain in the main zone. The exit plan should be small, but it should exist before the first flyer leak happens.

Review flyer losses precisely

After a loss, ask whether flyers died too slowly, were ignored because ground enemies had target priority, or arrived while key skills were on cooldown. Each answer creates a different fix. Slow flyer deaths require better range or upgrades. Targeting problems require moving heroes or changing tower placement. Cooldown problems require saving skills through harmless waves.

A good retry changes one thing: move a ranged hero closer to the crossing point, delay an upgrade until the first air wave, or reserve one skill for the flyer pack. If the next run improves the flyer wave but fails later, the plan is becoming more accurate.