Awaken Forest
Awaken Forest is a monster-only spell which makes all trees in the caster's LOS deal damage to adjacent enemies. Messages mention trees reaching out and smacking you with branches, tripping you with roots, etc.
The forest starts to sway and rumble! (Druid awakens forest in your LOS)
Tree limbs sway around you. (You come upon an awakened forest)
The following monsters cast Awaken Forest: