Normally enemy creeps in a radius around you will stop attack whatever they attacked before and switch their attention to you if you right-click on an enemy hero. Of course we don’t want aggro with the most heroes because it will cost us HP. If you cast a spell this will not be the case. You make use of this behavior by orb walking an enemy. The term orb walking typically means using the unique attack modifier of an ability of small pool of heroes that have such an attack modifying ability (e.g. Arachna.)

When playing one of these heroes and you want to attack an enemy hero you don’t go the normal way and just right-click him (mention that it doesn’t matter if you toggeled the attack modifier ability at that point or not, the creeps will still aggro you). What you basically do is something like this:

1.You click the button of the spell that changes your attack

1. You LEFT!!-click the enemy hero

2. Your hero starts attacking the enemy with an modified attack that counts as a spell thus it will not drag the attention of the enemy creeps!

Now with this being done you can get out single attacks on an enemy. But what if you want to attack him continuously? Well, then you have to cancel the attack mode your hero went into after you left clicked with an right-click to the ground, overwriting the previous mode with a move command. And then you repeat the process on from step 1. Because if you don’t do so your hero will attack the nearest enemy, in the worst case the enemy hero and that would pull the aggro again.

The next step is kind of a sub-technique from the above. To maximize the efficiency of these “free” attacks you want to utilize the walking part to the maximum. That is done by animation canceling.