You could look it up here.
He hides the zergling, uses a missile launched on the target, applies several buffs to disable the target, keep the zergling hidden and teleport it to the target.
Also, he adds an attachment looking like the zergling to the target, while the original zergling auto-attacks the enemy while being hidden. Additionaly it is raised a little, so the selection circle roughly matches the attached zergling.
You could look it up here.
He hides the zergling, uses a missile launched on the target, applies several buffs to disable the target, keep the zergling hidden and teleport it to the target.
Also, he adds an attachment looking like the zergling to the target, while the original zergling auto-attacks the enemy while being hidden. Additionaly it is raised a little, so the selection circle roughly matches the attached zergling.