In the chaotic environment of a competitive arena battler, units seem to run wildly toward whatever is closest to them.
If you cannot reliably predict which target an enemy unit will choose to attack, you are relying entirely on luck.
The Concept of Sight Range
When a unit is deployed or finishes destroying a target, it scans its specific sight range for the closest valid enemy.
If a massive, slow-moving tank is lumbering toward your tower, you do not need to place your defense directly in front of it.
- Count the squares to ensure perfect placement.
- If a unit is already locked onto a tower, it will ignore closer targets.
- Flying units often have different pathing rules.
Advanced Aggro Tricks
Large tanks have massive hitboxes, meaning melee defenders can attack them from slightly further away than smaller troops.

For example, if an enemy Miner is locked onto your tower, you can deploy a large tank directly on top of him.
| Aggro Rule | How to Exploit It |
|---|
| Closest Target Logic | Place a cheap skeleton exactly one tile closer to the enemy than your fragile ranged attacker |
| Vision Refresh | The tower will rescan and target the swarm |
Practice Makes Perfect
Reading about aggro ranges is completely different from actually executing pixel-perfect placements in the heat of a live match.
Once you internalize the invisible grid that governs the AI, the game slows down dramatically.
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