In the chaotic environment of a competitive arena battler, units seem to run wildly toward whatever is closest to them.

This article will dissect the mathematics of sightlines, retargeting, and unit hitboxes to help you manipulate the AI flawlessly.
The Concept of Sight Range
Every single unit in the game possesses a hidden 'sight range' value, usually measured in invisible tiles.

Understanding exactly how many tiles a unit can 'see' allows you to place distractions at the absolute maximum possible distance.
Building-targeting units usually have larger sight ranges.They will ignore targets that are just a few tiles away.Always account for the unit's movement speed. The Geometry of Defense
One of the most complex aspects of aggro management involves understanding the physical size, or 'hitbox', of different units.

For example, if an enemy Miner is locked onto your tower, you can deploy a large tank directly on top of him.
Character ClassTargeting StyleBuilding ChasersCompletely ignore all enemy troops, making them incredibly easy to kite across the entire map with cheap structuresMelee AssassinsOften have dash abilities that lock onto targets from far away; must be intercepted before the dash animation begins Mastering the Grid
You must spend hours in friendly battles practicing these specific interactions until they become pure muscle memory.

Control the aggro, control the arena.

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