The target leaves behind a trail of shifting rubble that typically consists of stones, but you could choose another earthen material, such as loose sand or soil. For 2 rounds, when the target willingly moves out of a space, and if the target is in contact with the ground, the ground in that space becomes difficult terrain. The difficult terrain remains for the spell's duration.
Heightened (4th) The target leaves difficult terrain behind for 1 minute instead of two rounds, and the spell's duration is 10 minutes.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Effects with the earth trait either manipulate or conjure earth. Those that manipulate earth have no effect in an area without earth. Creatures with this trait consist primarily of earth or have a connection to magical earth.
You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.