The player has no control over the trees, but shares their line of sight and they remain until killed. Walking Woods can be used both defensively or offensively. They can provide protection to friendly units in remote areas or can be used to supplement the player's own army. However, they do mediocre damage to units, and heroes kill them easily. It is best to invoke Walking Woods near enemy fortifications as they can destroy buildings easily due to the fact that they deal crush damage.