This system of prioritization is known as 'aggro' (aggression), and mastering it is the most critical mechanical skill in the game.

If you cannot reliably predict which target an enemy unit will choose to attack, you are relying entirely on luck.

Vision and Targeting

Every single unit in the game possesses a hidden 'sight range' value, usually measured in invisible tiles.

As long as you place a building just barely inside the tank's sight range, the tank will alter its path and walk toward your building.

• Use this to pull them to the center.
• Melee units have very short sight ranges.
• Timing must be faster against fast troops.

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.

Mastering the Grid

Have a clanmate repeatedly send the same tank down the lane while you try to pull it to the center using different tiles.

Control the aggro, control the arena.